___the help of their team,we should not have succeeded.选项:a、As forb、 As toc、 Unlessd、 But for
问题描述：
___the help of their team,we should not have succeeded.
选项:
a、As for
b、 As to
c、 Unless
d、 But for
答
d but for
答
D
要不是
答
1.答案：D.
2.翻译：要不是他们队伍的帮助,我们本不会成功.
3.
1）a、As for=b、As to 至于/对于
c、Unless 除非/如果不
d、But for 要不是/要是没有...的话
2）其实从后句的should not have succeeded也可以看出,此句采用虚拟语气.
而只有D but for可能应用于此语法中.
答
D But for
虚拟语气的特殊表现形式 介词短语表示虚拟： 有时假设的情况并不以条件从句表示出来，而是通过一个介词短语来表示，或通过上下文或其他方式表示出来。如 but for, but that…, in case of, otherwise, supposing, under more favourable condition, without 等表示让步假设
He worked very hard; otherwise he might have failed. (他刻苦工作，不然他就失败了。)
But for his help，I could not have succeeded.