Mark the letter A, B, C or D on your answer sheet to indicate the correct answer that is opposite in meaning to the underlined part in each of the following questions.
Câu 1: A chronic lack of sleep may make us irritable and reduces our motivation to work.
A. uncomfortable
B. responsive
C. calm
D. miserable
Câu 2: Population growth rates vary among regions and even among countries within the same region.
A. restrain
B. stay unchanged
C. remain unstable
D. fluctuate
A.
B.
C.
D.