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

A. uncomfortable

B. responsive

C. calm

D. miserable

Câu 1: 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

Câu 2: My first impression of her was her impassive face.

A. emotional

B. respectful

C. solid

D. fractious

Câu 3: It was apparent from her face that she was really upset.

A. obvious

B. indistinct

C. transparent

D. evident

Câu 4: His replies were inconsistent with his previous testimony.

A. contradicted

B. compatible

C. enhanced

D. incorporated

Câu 5: Population growth rates vary among regions and even among countries within the same region.

A. restrain

B. stay unchanged

C. remain unstable

D. fluctuate

Câu 6: ‘What I’ve got to say to you now is strictly off the record and most certainly not for publication,’ said the government official to the reporter.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