题目内容
18.Look!It ____ hard now.You'd better wait for a while until it stops.( )| A. | rains | B. | has rained | C. | will rain | D. | is raining |
分析 看!雨下得很大,你最好等一等,直到它停为止.
解答 答案:D
根据look和时间状语now,可知"下雨"这一动作正在进行,所以考虑用现在进行时态,结构为am/is/are+doing,由于主语是it,是第三人称单数,所以用is,故选D.
点评 本题主要考查现在进行时态的运用,结构为am/is/are+doing.只要找到关键的时间状语,就能够准确判断时态.
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