he doesn't seem to know what happened last night这个句子是否正确?还应该是he didnt seem to know what happened last night?请说明原因
问题描述：
he doesn't seem to know what happened last night
这个句子是否正确?还应该是he didnt seem to know what happened last night?
请说明原因
答
doesn't 或者 didn't 都可以，要看具体的语境
如果用does not，一般就是通篇的时态都是现在时，或者在谈话中当事人到目前为止也不知道。
用did not则相反
答
he doesn't seem to know what has happened last night
he didnt seem to know what had happened last night?
好象应该用完成式
答
he doesn't seem to know what happened last night.
这句话没错的,不要以为宾语从句一定要之态一致,不一定的.
这句话是说：他（现在）好像不知道昨晚发生的事.