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

Pat: "Would you like something to eat?"  Kathy: "______. I'm not hungry now."

A. Yes, I would

B. No, no problem

C. No, thanks

D. Yes, it is

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

Most children enjoy _______ with their parents and siblings.

A. play 

B. to play

C. playing

D. played

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.

A. knocked 

B. missed 

C. finished

D. organized

Phân tử polime nào sau đây chỉ chứa 3 nguyên tố C, H, N trong phân tử?

A. Polietilen.

B. Poli(vinyl axetat).

C. Poli(ure - fomanđehit).

D. Poliacrilonitrin.