1. I’ve been swimming since two hours ago. (就画线部分提问)　　　you been swimming?2. She doesn’t wa

1. I’ve been swimming since two hours ago. (就画线部分提问)
　 　 　 you been swimming?
2. She doesn’t want that pen. She wants this one. (改为同义句)
She wants this pen 　 　 that one.
3. He worked here three years ago.（用since three years ago改写句子）
He 　 　 here since three years ago.
4. The weather was very hot yesterday,　 　 ? （完成下列反意疑问句）
5.Would you mind wearing those old jeans?(改为否定句)
Would you 　 　 　 those old jeans?

解析：1. 对since从句提问表示时间长度可用how long，后跟一般疑问句，助动词have提前，故本题空格处填How long have。2. 本题的含义为她想要这只钢笔而不是那只钢笔，instead of表示代替或而不是的意思，故本题空格处填instead of。3. 用since时间状语改写，句子要用现在完成时，故本题空格处填has worked。4. 反义疑问句前句是肯定的结构，后半句用否定的结构wasn’t，加人称代词it，故本题空格处填wasn’t it。5. 介意某人不做某事可以说成mind not doing，故本题空格处填mind not wearing。

和我的回答一样，看来我也对了

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