what happened这个句子对吗 为什么

what happened这个句子对吗 为什么 what happened?语法对吗 What interesting work!这个句子对吗? what about something eating这个句子对吗 What are your problems.这个句子对吗? 在这个句子中what happened 作什么成分?例句是：Please give a full account of what happened yesterday. what came about last night?what took place last nigjt?what happened last night?这3个句子都对吗,或哪个是错的,详细说明下. 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 what happened at his house对吗?为什么老师说是what happened to--求解释 Remember what should be remember 这个句子对吗 What qualifications do you have?这个句子对吗? what is your history teacher like?这个句子对吗? what is the matter with your bike 这个句子对吗 what club to you want to jion这个句子对吗 what have you bought yesterday这个句子对吗? What you disappeared 这个句子对吗?是个什么句? I do care what I wear这个句子对吗 what has happened.这个句式有错吗