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No one can walk the wire in the air without a bit of fear unless very young.A.ha

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No one can walk the wire in the air without a bit of fear unless very young.A.ha

No one can walk the wire in the air without a bit of fear unless ______ very young.

A.having trained

B.trained

C.to be trained

D.being trained

试题答案

B

解析:

这题考查条件状语从句的省略,英语中,如果主从句的主语一致,可以省略从句中的主语和be动词,像这题,完整的表达应该是:unless he is trained young,省略he is后就剩下trained,选B。