问题描述：
①.while we （have）dinner,the telepho
①.while we （have）dinner,the telephone rang. ②.what you （do） when your mother came cable? ③.we （read）books while he （watch）TV at eight yesterday.（用所给单词的适当形式填空）
①.while we （have）dinner,the telephone rang. ②.what you （do） when your mother came cable? ③.we （read）books while he （watch）TV at eight yesterday.（用所给单词的适当形式填空）
问题解答：
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