Câu hỏi: A smile can be observed, described, and reliably identify, it can also be elicited and manipulated under experimental conditions.

A. identify

B. experimental

C. can also

D. A smile

Câu 1: Neither of the men arresting as terrorists would reveal information about his group.

A. Neither

B. arresting

C. would reveal

D. his group

Câu 2: The most visible remind of the close relationship between the United States and France is the famous Statue of Liberty, which stands in New York habor.

A. remind

B. between

C. is

D. which

Câu 3: Tenant farmers are those they either rent a farm and work it for themselves or work the farm for the owner and receive payment.

A. they

B. it

C. or

D. the owner

Câu 4: My elder sisters, both of them were doctors, said they were too busy to pick me up.

A. elder

B. both of them

C. too busy 

D. to pick

Câu 5: Could you tell me how can I get to the city library, please?

A. Could

B. me

C. how can I

D. the

Câu 6: It is recommended that people to take regular exercise.

A. recommended

B. people

C. to take

D. exercise