she was heard singing song just now
题目
she was heard singing song just now
如果有确定的时间,如yesterday morning 是用heard to sing 还是heard singing
答案
我觉得应该是用
she has heard singing just now
或
she has heard someone singing a song just now
至于yesterday morning
还是应该用heard singing
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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