Câu hỏi: Unless the two signatures are identical, the bank won’t honor the check.

A. similar

B. different

C. fake

D. genuine

Câu 1: Her thoughtless comments made him very angry.

A. honest

B. kind

C. pleasant

D. thoughtful

Câu 2: Solar energy is not only plentiful but also infinite.

A. without limit

B. boundless

C. limited

D. indefinite

Câu 3: A chronic lack of sleep may make us irritable and reduces our motivation to work.

A. uncomfortable

B. responsive

C. calm

D. miserable

Câu 4: ‘What I’ve got to say to you now is strictly off the record and most certainly not for publication,’ said the government official to the reporter.

A. already official

B. beside the point

C. not popular

D. not recorded

Câu 5: We are very grateful to Professor Humble for his generosity in donating this wonderful painting to the museum.

A. meanness

B. sympathy

C. gratitude

D. churlishness

Câu 6: We'd better speed up if we want to get there in time.

A. slow down

B. turn down

C. put down

D. lie down