Câu hỏi: If there is a mechanical problem, we suggest ______ the manufacturer directly.

A. contact

B. contacting

C. to contact

D. be contacted

Câu 1: I’ll be in trouble if I _________my passport.

A. lose

B. will lose

C. lost

D. would lose

Câu 2: The telephone was_________ by Alexander Bell.

A. invent

B. invented

C. inventing

D. inventor

Câu 3: The boy likes ________ games but hates ___________ his lessons.

A. play/ study

B. playing/ study

C. play/ studying

D. playing/ studying

Câu 4: It was an_________ day.

A. enjoy

B. enjoyable

C. enjoyment

D. enjoyably

Câu 5: If you’ve got a headache, why don’t you try _______an aspirin?

A. to take

B. taking

C. to be taken

D. being taken

Câu 6: Some scientists say that flying saucers might be people's______

A. imagination

B. imagine

C. imaginative

D. imaginary