is dangerous _a car at such a high speed.A.to drive B.to driving C.driving D.to be driving请问选哪个及理由,我也认为选a ,究竟该选哪个?为什么?
问题描述：
is dangerous _a car at such a high speed.
A.to drive B.to driving C.driving D.to be driving请问选哪个及理由
,我也认为选a ,究竟该选哪个?为什么?
答
看似是A, 但C好像也对的。
答
A
有个句式：it's 形容词+to do something
答
答案是A.这是一道典型的形式主语的考点.这个句子如果用它原始的形式来写你可能就更容易理解了：To drive a car at such a high speed is dangerous.这句话的主语是To drive a car at such a high speed,这样长的主语...
答
A
it is+adj+to do固定用法