Câu hỏi: George is not enough intelligent to pass this economics class without help.

A. enough intelligent

B. to pass

C. economics

D. help

Câu 1: She raised her hand high. She wanted to attract her teacher’s attention.

A. Because her teacher attracted her, she raised her hand high.

B. She had such a high raising of hand that she attracted her teacher’s attention.

C. Though she raised her hand high, she could not attract her teacher’s attention.

D. To attract her teacher’s attention, she raised her hand high.

Câu 2: I don’t understand why the students didn’t keep silent while the speech _________.

A. was being made

B. was made

C. has been made

D. has been made

Câu 3: The result of the studies have had a strong impact on future developments.

A. of

B. have had

C. strong

D. on

Câu 4: We should participate in the movement _________to conserve the natural environment.

A. which organized

B. organizing

C. to organize

D. organized

Câu 5: 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 6: 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