— David promised to come round to have supper with us today.

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— David promised to come round to have supper with us today. — But he ____. I’ve been alone for
— 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
此题为四川一个中考题,多个网址都说答案为A,可是C为什么不可以呢?请各位英语高手帮我解决一下,最好是拥有专业知识的英语老师...请详细作解...急需...万分感激.

答案是A,这道题要从具体语境来理解,如果你根据上问句的时态来选,就很容易选错.
从回答来分析吧 I’ve been alone for half an hour 这句表示说话人都等了1个半小时了,这里明显看出说话人想要表达的意思是：他不会再来了（将来时）,我都等了1个半小时了.而不是表达：他没来过.

— David promised to come round to have supper with us today. 英语高手请进：david promised to come round to have supper with us t David said he would come to have supper with us.But he_ We'v ___ to have lunch with us today? 初二英语改错题1.He promised to come and see us after the supper.2.I --Henry promised to come to see you today. he had promised to come and help us and------ 选择：My parents have promised to come to see me before I——(lea 句型转换：Professor Santo came round to have dinner with us last —come to have dinner with us tonight._thanks.I___(do/will/di --dad,will you come home for supper with us today?---____,bu please come to the restaurant to have dinner with us 为什么要用to