题目内容
用所给单词的适当形式填空
I ________ (cannot go) out that night, for I ________ (promise) to wait for an old friend of mine at home.
答案:couldn't go;had promised
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题目内容
用所给单词的适当形式填空
I ________ (cannot go) out that night, for I ________ (promise) to wait for an old friend of mine at home.