一道关于情态动词的英语题
He was a good swimmer so he _________ swim to the river bank when the boat sank.
A. couldB. mightC. shouldD. was able to
选D为什么不选A
强调能力不应该选择A吗？
人气：192 ℃ 时间：2020-09-26 17:50:10
解答
be able to 强调结果,成功做成某事
could 强调能力,可能
The cildren were able to run out of the house before it was burnt down.
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