Câu số 21:  

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

Adrian got surprisingly high grades in the final exam. He ______ his lessons very carefully.

Câu số 22:  

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

Sue rarely misses a chance to do voluntary work, ______?

Câu số 23:  

(23)______

Câu số 24:   (24)______

Câu số 25:   (25)______

Câu số 26:   (26)______

Câu số 27:   (27)______

Câu số 28:  

What is the passage mainly about?

Câu số 29:  

The word " warriors" in paragraph 2 mostly means ______.

Câu số 30:  

The word " them" in paragraph 3 refers to ______.