they had a meeting yesterday afternoon.为什么句中“meeting”不用原形呢?

They had a sports meeting last week.(had a sports meeting划线) they had a school meeting this time yesterday改错 they had a meeting yesterday afternoon.为什么句中“meeting”不用原形呢? They had a short meeting and began to ( )it when they climbed up the mountains. they a meeting form 2 to 4 yesterday afternoon A had had Bwould have C were having D had Had you a meeting yesterday? They had a meeting at six o'clock(对划线部分提问) They had a meeting yesterday改成疑问句这么简单的一句被我妈越说越搞. They had a sports meeting yesterday.改疑问句,肯.否回答! They had a meeting last week 改成否定句急急急急 They had a meeting three ours ago.（对划线词提问）怎么做 They desired that they _____ the right to attend the meeting.A,had B.have C.are D.were This is the room ---- they had a meeting last year.A.that B.where C.which D.what Hardly__come into the room__the meeting began.A.had they;when B.did they;then C.they did;then如果选A的话，那为什么用come而不是came？ 用had not或didn't have填空:They ( ) a meeting yesterday.请告诉我为什么不是另一个? They still had their sport meeting横线it was raining A、while B、though C、before D、because理由 they are have a meeting.=they____ ____ a meeting. 问到英语题They said they ____ a meeting at 9:00 last night A.were having B.had选什么为什么