That day he ______ his clothes before he came to see me.选项:a、has washed b、washed c、had been

问题描述:

That day he ______ his clothes before he came to see me.选项:a、has washed b、washed c、had been

首先,这题应选a
注意before 和 came,应是过去的过去,用过去完成时.而过去完成时的结构是have/has+过去分词,主语是he三单一所以用has.b 项没有has因此是错的,c项首先是过去完成时,其次如是had been就是他已经变成了他的衣服?!
咳咳,最后再次总结,a!