问题描述：
1、How's the weather in London?(改为同义句）
2、Li Ming and Bill are having lunch now.（改为否定句）
3、The students are having a history class.(改为一般疑问句）
4、Helen is watching TV now.(对watching TV提问）.
5、Jim is playing basketball at school.（对at school提问）.
2、Li Ming and Bill are having lunch now.（改为否定句）
3、The students are having a history class.(改为一般疑问句）
4、Helen is watching TV now.(对watching TV提问）.
5、Jim is playing basketball at school.（对at school提问）.
问题解答：
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