The weather (改变）a lot these days .It is too hot in summer an
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题目内容：
The weather ______(改变）a lot these days .It is too hot in summer and too cold in winter.
单词拼写 ,空处为单词改变,需要怎样的变化,怎样写,人教版英语7年级下7至9单元单词.谢
优质解答
has changed
these days提示用现在完成时.
本题链接：
