作业帮一道英语选择题-David promised to come round to have supper with us today.-But he_____.I've been alone for half an hour.A.won'tB.hadn'tC.hasn'tD.doesn't正确答案好象是A,但为什么BD不可以?
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一道英语选择题-David promised to come round to have supper with us today.-But he_____.I've been alone for half an hour.A.won'tB.hadn'tC.hasn'tD.doesn't正确答案好象是A,但为什么BD不可以?
一道英语选择题
-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
正确答案好象是A,但为什么BD不可以?
一道英语选择题-David promised to come round to have supper with us today.-But he_____.I've been alone for half an hour.A.won'tB.hadn'tC.hasn'tD.doesn't正确答案好象是A,但为什么BD不可以?
-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
正确答案好象是A,但为什么BD不可以?
答：C
译：戴维答应过今天过来和我们一起吃晚饭.
可他还没有来.我一个人（都等了）半个小时了.
析：此回答为省略句.如不省略,则为：But he hasn't come yet.可他到现在都还没有来.
B.是过去完成是,相对于过去某个时间之前发生的事或存在的情况,显然不妥.A=he won't come.表示他不愿意来,与前句矛盾.D是一般现在时,表示经常发生的情况.
答案就是A啊，我都等了半小时了，可以推测David等会儿不会来了，表将来啊。就这么简单。
只能用A，因为等候的最后时刻还没有到。
A 表将来时 意思是他还没有来
B表过去完成时
C现在完成时
D一般现在时
这题答案为什么是A.. 我认为是B或者C 因为意思应该是他没有来 而不是他不会来 但看后面那句 i've been alnow for half an hour. 这里用了have 所以可能是C 代表完成时
C