中考網整理了關于2020年中考英語知識點之過去進行時句型轉換，希望對同學們有所幫助，僅供參考。

　　句型轉換

　　因為“was/were doing”中的was/were是助動詞，所以在進行句型轉換中要注意不需要再另外借助助動詞do/did/does，而是直接借用was/were。如：

　　肯定句：I was trying to work out a solution to the problem at this time yesterday.

　　否定句：I wasn't trying to work out a solution to the problem at this time yesterday.

　　一般疑問句：Were you trying to work out a solution to the problem at this time yesterday?

　　特殊疑問句：What were you trying to work out at this time yesterday. （劃線部分為a solution to the problem）

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