giải pt

1)x/√2x+3=11/5

2)√y+1 =-2/5

It/ nice/ and/ meaningful/ take part/ charity activities.

            A. It is nice and meaningful take part in charity activities.

            B. It is nice and meaningful to take part on charity activities.

            C. It nice and meaningful to take part in charity activities.

            D. It is nice and meaningful to take part in charity activities.

They are living in a house. It was built a long time ago.

            A. They are living in the house built a long time ago.

            B. They are living in the house was built a long time ago.

            C. They are living in the house which built a long time ago.

            D. They are living in the house, that was built a long time ago.

5.  Has anyone informed you about the class meeting yet?

            A. Have you been said about the class meeting yet?

            B. Have you been told about the class meeting yet?

            C. Have you been spoken about the class meeting yet?

            D. Have you been invited to the class meeting yet?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The price of holidays can fluctuate a great deal throughout the year, so you can save a lot if you are flexible with your travel dates and avoid peak holiday times. It can be also cheaper if you book well in advance. Before your departure, make sure you get as much information about your destination as you can. Find out if you require any special visas or permits to travel there. Think about spending money as well. Will you be able to access your own money easily enough or will you need to take cash with you? Think about eating larger lunches and smaller evening meals to help your money go further, as lunch is generally cheaper. Make sure that you keep sufficient identification with you at all times. It may also help to email a copy of your passport details to yourself, in case it is lost or stolen. Label your suitcases clearly so that they can be easily identified as yours. It can be useful to store a copy of your itinerary in a prominent place in your suitcase so that the airline will know where to find you if your luggage gets lost. Be sure to pack any medication or other essential items in your hand luggage. If your flight is delayed, or your luggage is lost, these can be difficult to obtain in an airport or foreign country.

1. Which can be the best title for the passage?

A. Travel procedures                                                               B. Travel advice

C. How to adjust travel dates                                     D. Protect your luggage

2. Which one of these is NOT advisable according to the passage?

A. Research your destination                                      B. Always bring identification

C. Apply for visas if necessary                                   D. Save money by cutting out dinner

3. According to the passage, your luggage should be ___________.

A. stored in a safe place                                                          B. tagged in case of being lost

C. packed with your passport                                     D. painted a bright colour

4. The underlined word ‘it' refers to your ___________.

A. identification                      B. luggage                   C. passport                              D. flight

5. It can be inferred from the passage that ___________.

A. travelling may cost more in peak season     

B. you must always take cash with you

C. larger lunches cost more than smaller ones   

D. you can't get back your lost luggage overseas

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

My most favourite subject is English, which is today one of the most important languages and it is spoken and understood in all parts of the world.

English has become an international language for a variety of reasons. One of the most important of those is that the English people have been well-known for their knowledge of science, medicine, engineering, government and all other matters that are useful for the progress of the human race. It is thanks to the scientists c

of England that the motor-engine has become the most important machine in the world today.

The thirst for knowledge of the English scholars has contributed to the progress of man in almost all fields of his activity. Thousands of books have been written by such scholars on almost every subject that one can think of. Thus, people whose mother tongue is not English have learnt English with great interest as a means of acquiring knowledge of all human affairs.

As a result of this interest, English is used almost everywhere in the world. It is used in all the important meetings and conferences in the United Nations. It is also used in all leading universities in the world and in international trade and commerce. As it is used so widely, English has indeed become a very rich language. People of all the countries of the world have contributed new ideas and thoughts to this language. Thus, more and more new words are being created to make this language more and more useful for the communication of ideas and information among the peoples of the world.

1. English is the most important language in the world because __________

A. it is spoken and understood in all parts of the world.

B. it is my favourite subject.

C. it is used in meetings.

D. it is used in all leading universities.

2. The motor-engine has become the most important machine in the world today thanks to ___________.

A. the people all over the world

B. the scientists of England

C. the United Nations

D. the Americans

3. Thousands of books __________.

A. have been sold by English scholars on almost every subject

B. were written in English

C. were read by English scholars

D. have been written by English scholars on almost every subject that one can think of

4. Because English is used so widely, __________

A. it has become a very rich language.

B. it has become a very interesting language.

C. it has indeed become a very poor language.

D. it has become a very useless language.

5. Why do people whose mother tongue is not English have learnt English with great interest?

A. Because it is a means of doing everything for all human affairs.

B. Because it is an international language.

C. Because it is a means of acquiring knowledge of all human affairs.

D. Because it is a means of practising what people have achieved in their jobs.

OPPOSITE

3. A lot of things have been done to save natural resources but it seems not enough.

A. exploit                                B. explore                    C. protect                    D. discover