Cho các polime sau: (1) xenlulozơ; (2) protein; (3) tơ nilon-7; (4) polietilen; (5) cao su buna.

Số polime có thể tham gia phản ứng thủy phân là

A. 5.

B. 2.

C. 3.

D. 4.

Poli(etylen terephtalat) được điều chế bằng phản ứng với axit terephtalic với chất nào sau đây?

A. Etylen glicol.

B. Etilen.

C. Glixerol.

D. Ancol etylic.

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

In daily communication, you should know how to interpret other people’s body language.

A. Understand

B. answer

C. respond

D. notice 

Read the following passage and mark the letter A, B, C or D on your sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 36 to 46

I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 kilometres from the capital N’Djamena. Coming from a (36)______country, I got quite a shock, as conditions were much harder than I had ( 37) ______. But after a few days I soon got used to (38) ______there. The people were very friendly and helpful, and I soon began to appreciate how beautiful the countryside was.

One of my job was to supply the village with water. The well was a long walk (39) _____, and the women used to spend a long time every day ( 40)_______heavy pots backwards and forwards. So I contacted the organization and arranged to (41 ) _____some pipes delivered. We built a simple pipeline and a pump, and it worked first time. It wasn’t perfect there were a few (42) _____but it made a great difference to the villagers, (43 )______had never had running water before. And not (44 ) ____did we have running water, but in the evenings it was hot, because the pipe had been (45) ____ in the sun all day.

All in all, I think my time with OV was a good experience. I would recommend it to anyone who was planning to work for a charity

Điền vào ô 39

A. away

B from

C. away from

D. far

What did you have for ______ breakfast this morning

A. x                      

B. a                       

C. an                     

D. the

Choose the letter A, B, c, or D on your answer sheet to indicate the word differs from the
rest in the position of the main stress in each of the following questions

A. develop

B. chocolate

C. arrangement

D. procession