The laboratory technician often warns the trainees that they can’t be______careful in doing the experiment.

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问题 The laboratory technician often warns the trainees that they can’t be______careful in doing the experiment.

选项 A、much
B、so
C、most
D、too

答案D

解析 cannot…too无论怎样……也不过分,在此结构中,cannot也可改用can hardly/scarcely/never/impossible,too可以改用over, enough, sufficient,如:We can hardly praise his achievement too much.对他的成就我们无论怎样赞扬也不过分。A man can never have too many friends. 朋友越多越好。
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