Question

___the help of their team, we should not have succeeded.

选项:
a、As for
b、 As to
c、 Unless
d、 But for

Answer 1

1. 答案：D.

2. 翻译：要不是他们队闹配伍的帮助，我们本不会成功。

3. 解释：
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...的话桥弯
2）其实从后句的should not have succeeded也可以看出，此句采用虚拟液消指语气。
而只有D but for可能应用于此语法中。

Answer 2

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盯判，或通过上下困亏文或其他方式表凯尺改示出来。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.

Answer 3

D
要不是

Answer 4

d but for