Câu hỏi: There has been no discernible improvement in the noise levels since lorries were banned.

A. insignificant

B. clear

C. obvious

D. thin

Câu 1: My mom is always bad-tempered when I leave my room untidy.

A. feeling embarrassed

B. talking too much

C. very happy

D. easily annoyed

Câu 2: The dim light made it hard to see, so Ben squinted to make out the stranger’s face in the distance.

A. faint

B. muted

C. weak

D. strong

Câu 3: The distinction between schooling and education implied by this remark is important.

A. explicit

B. implicit

C. obscure

D. odd

Câu 4: 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 5: She wrote me a vicious letter.

A. helpful

B. gently

C. dangerous

D. healthy

Câu 6: In some countries, the disease burden could be prevented through environmental improvements.

A. something to stiffer

B. something enjoyable

C. something sad

D. something to entertain