If we _____careful ,fire can be very dangerous
If we _____careful ,fire can be very dangerous
A.don't be B.are C.aren't D.won't be
请说明一下理由
A.don't be B.are C.aren't D.won't be
请说明一下理由
英语人气:433 ℃时间:2019-10-11 05:28:52
优质解答
选c,条件状语从句,从句用一般现在时,由于careful是形容词,所以前面用be动词aren't,意思是:如果我们不小心,火可以变得非常危险.D.won't be 怎么不行呢?因为won't be是将来时态,但是由if引导的条件句中,一般情况下,if后面的要用一般现在时,而不是将来时态,故选c
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