题目内容

We must work hard and never ________ in our efforts.

A. relax
B. leak
C. reflex
D. reflect

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The boy is so strong that he can ________ a telephone book in half.

A. punish
B. tear
C. span
D. credit

The train is going at the ________ of 120 kilometres an hour.

A. rate
B. rent
C. remote
D. tap

Instant foods are gaining ________ in many countries.

A. enthusiasm
B. pollution
C. popularity
D. strength

A quarterly is ________ four times a year.

A. improved
B. repeated
C. produced
D. issued

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