—Look at the black clouds.Itsoon.—Sure.If only weout.A. is raining;didn’t comeB. is to

—Look at the black clouds.It soon.
—Sure.If only we out.
A. is raining;didn’t come
B. is to rain;won’t start
C. will rain;haven’t started
D. is going to rain;hadn’t come

A. is raining;didn’t comeB. is to rain;won’t startC. will rain;haven’t started(答案→)D. is going to rain;hadn’t come解析：be going to do sth.常见的用法为:①表示按计划或安排打算去做某事；②表示有迹象表明要发生某事,此题是第二个用法。if only引起的句子中谓语部分要用虚拟语气，与过去事实相反时，用过去完成时。

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