教师招聘英语知识点：复合句与简单句的转换技巧（七）

若原句中有动词be

原句中含有be动词(am, is, are, was, were) 和助动词(have, has, had) 和情态动词(can, shall, will, may, should, would, might, had better等)时，要在动词后直接加not。如：

His mother has already called the police for help.

His mother ________ called the police for help ________. (答案：hasn’t, yet)更多真题及资料请加小编微信65210638领取