Câu hỏi: An endangered species is the one _________ population is so small that it is in danger of becoming extinct.

A. which

B. what

C. whose

D. who

Câu 1: _________, we would have been forced to sack him.

A. Were he not to resign

B. If he resigned

C. Had he not resigned

D. If he had resigned

Câu 2: "Be sorry for sending the wrong information, Kate" said Rita.

A. Kate sent the wrong information, and she was sorry.

B. Rita apologized to Kate for sending her the wrong information

C. Rita was sorry about Kate's sending the wrong information.

D. Rita was sorry for not sending Kate the information.

Câu 3: Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the primary stress in each of the following questions.

A. argument

B. admission

C. domestic

D. acquaintance

Câu 4: If you ________a wallet in the street, what would you do with it?

A. found

B. have found

C. find

D. had found

Câu 5: The result of the studies have had a strong impact on future developments.

A. of

B. have had

C. strong

D. on

Câu 6: Ms. Brown asked me _________ in my class.

A. how many students there were

B. were there how many students

C. how many students were there

D. there were how many students