请注意所有的大小写、标点符号还有空格，任何一个小的不同都会导致错误哦！
It was hot yesterday.
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否定句 ____________
一般疑问 ____________
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They were short.
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否定句 ____________
一般疑问 ____________
Yes答句 ____________
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I went to school last week.
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否定句 ____________
一般疑问句 ____________
Yes答句 ____________
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I did homework four days ago.
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否定句 ____________
一般疑问句 ____________
Yes答句 ____________
No答句 ____________