What’s wrong? What’s the matter? What’s happening? e.g. I don’t know what’s the matter. Can you tell me who is over there? 3、宾语从句与主句的时态要相互呼应 1. 如果主...
3) It’s important/ essential/ necessary for you to do… 4) It’s a good idea for you to do… 5) You should (not) do…/ You had better (not) do… 6) Why not do…? 7) Rememb...
如果两个名词并列,若分别有加“'s”,则表示“分别有……”;若只有后一个名词加“'s”,则表示两个“共有”。如:John's and Mary's rooms(两间);John and Mary's room(一间) 规则5 省略格...
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