( )such heavy pollution today,it may now be too late to clean up the river.
A Having sufferedB Suffering
C To sufferD Suffered
希望各位可以给出详细的解答,我这个人钻牛角尖……
谢谢了
D为什么不对?
具体分析一下……
人气:279 ℃ 时间:2019-08-20 13:39:23
解答
答案是选A
A同时表示已经和正在两种结合的状态,说明污染的持续状态:已经被污染了,而且还继续在被严重污染.
D表示过去式,河流过去被污染了,和句中的today会矛盾,在意思上呈错误现象.
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