题目内容

Younger children are curious ________ how things workㄛand many of them want to take

A. of
B. about
C. at
D. with

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With such a poor score in the entrance exam， it‘s ________ impossible for him to be

A. roughly
B. absolutely
C. fully
D. exclusively

We promise that we‘ll meet again after we _______ our college education in three years’ time.

A. finish
B. will finish
C. finished
D. will have finished

Since we have a focused subject， we should not talk ________.

A. at once
B. at hand
C. at intervals
D. at random

The doctors are ________ about the guidelines under which they can carry out euthanasia.

A. at a stretch
B. at a loss
C. at random
D. at length