Câu hỏi: 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 1: There has been no discernible improvement in the noise levels since lorries were banned.

A. insignificant

B. clear

C. obvious

D. thin

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: During the five- decade history the Asian Games have been advancing in all aspects.

A. holding at

B. holding back

C. holding to

D. holding by

Câu 4: She wrote me a vicious letter.

A. helpful

B. gently

C. dangerous

D. healthy

Câu 5: It was apparent from her face that she was really upset.

A. obvious

B. indistinct

C. transparent

D. evident

Câu 6: The distinction between schooling and education implied by this remark is important.

A. explicit

B. implicit

C. obscure

D. odd