Câu hỏi: You have just passed your exam. This makes your parents happy.

A. You have just passed your exam makes your parents happy.

B. That you have passed your exam makes your parents happy.

C. You have just passed your exam which it makes your parents happy.

D. Having just passed your exam making your parents happy.

Câu 1: What the woman was saying were so important that I asked everyone to stop talking and listen.

A. What

B. was saying

C. were

D. to stop taking

Câu 2: Sleeping, resting, and to drink fruit juice are the best ways to cure for a cold.

A. Sleeping

B. to drink

C. juice

D. best ways

Câu 3: 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 4: Some snakes have hollow teeth they are called fans that they use to poison their victims.

A. Some 

B. they are called

C. use

D. their

Câu 5: If you ________a wallet in the street, what would you do with it?

A. found

B. have found

C. find

D. had found

Câu 6: After David _________ his homework, he went straight to bed.

A. had finished

B. has finished

C. was finished

D. finished