Tính các góc của hình thang ABCD (AB//CD) biết rằng: có  A ^ = 1 3 D ^ , B ^ − C ^ = 50 0 .

Tứ giác ABCD có BC = CD và DB là tia phân giác D ^ . Chứng minh rằng ABCD là hình thang và chỉ rõ cạnh đáy và cạnh bên của hình thang

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions from 26 to 27.

A. clothes

B. oranges

C. resources

D. reaches

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.

Many people enjoy lying in bed in the morning, but can you imagine having to spend 90 days in bed? Could you stand the boredom and the frustration of not being(31)_____ to get up? That was the task that faced 14 volunteers when they started out on a bed-rest experiment being conducted (32)_____ the European Space Agency.

The study had a serious purpose: to investigate the changes that take place in the human body during long-duration spaceflight. Lying in a horizontal position was the best way of (33)_____ weightlessness. The aim was to discover what effect period of weightlessness will
have on the health of astronauts spending several months on the International Space Station.

The volunteers ate their meals, took showers and underwent medical tests without ever sitting up. That's even tougher than it sounds, especially when you (34)_____ that no visitors were permitted. However, each volunteer did have a mobile phone, as well as access to the latest films,

computer games and music. Surprisingly, Everyone was in a good (35)_____ at the end of the
90 days, 'I would do it again,' said one of the volunteers. 'It was disorientating, but we knew we were 'contributing to medical research and space exploration.

Điền vào ô 35.

A. attitude

B. spirit

C. feeling

D. mood

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.

Many people enjoy lying in bed in the morning, but can you imagine having to spend 90 days in bed? Could you stand the boredom and the frustration of not being(31)_____ to get up? That was the task that faced 14 volunteers when they started out on a bed-rest experiment being conducted (32)_____ the European Space Agency.

The study had a serious purpose: to investigate the changes that take place in the human body during long-duration spaceflight. Lying in a horizontal position was the best way of (33)_____ weightlessness. The aim was to discover what effect period of weightlessness will
have on the health of astronauts spending several months on the International Space Station.

The volunteers ate their meals, took showers and underwent medical tests without ever sitting up. That's even tougher than it sounds, especially when you (34)_____ that no visitors were permitted. However, each volunteer did have a mobile phone, as well as access to the latest films,

computer games and music. Surprisingly, Everyone was in a good (35)_____ at the end of the
90 days, 'I would do it again,' said one of the volunteers. 'It was disorientating, but we knew we were 'contributing to medical research and space exploration.

Điền vào ô 31.

A. enabled

B. allowed

C. granted

D. approved

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Without her teacher's advice, she would never have written such a good essay.

A. Her teacher advised her and she didn't write a good essay.

B. Her teacher didn't advise her and she didn't write a good essay.

C. She wrote a good essay as her teacher gave her some advice.

D. If her teacher didn't advise her, she wouldn't write such a good essay.