仅仅一道题选择.Before ------ any buses ,they will have to take a sp

学习时间:2026-08-14 18:42:39 阅读：8341

仅仅一道题选择.Before ______ any buses ,they will have to take a special test .A to drive B driving they will drive.B A B C.

现代的鱼

2026-08-14 18:42:39

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这道题考查的是非谓语动词,主语不能连接两个句子,所以不能选C,这道题主语是they,他们与谓语开汽车是主动的关系,所以用ING 形式TO DO 表目的,无法解释的通,不合题意