题目内容
句型转换
Lingling was reading an English book then. (改为否定句)
Lingling ________ ________ an English book then.
答案:wasn't;reading
解析:
解析:
|
点拨:过去进行时的基本构成是 was/ were+v.-ing,其中was或were是助动词,否定式在其后加not。 |
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