麻烦老师解答：—David promised to

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/08 08:54:25

—David promised to come round to have supper with us today. —But he .I've been alone for half an hour.	[ ]
A.won't B.hadn't C.hasn't D.doesn't

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