问题描述:
david promised to come round to have supper with us today
but he___,i've been alone for half an hour
a.wont't b.hadn't c.hasn't d.doesn't
原因是什么?
but he___,i've been alone for half an hour
a.wont't b.hadn't c.hasn't d.doesn't
原因是什么?
问题解答:
我来补答展开全文阅读