If these kind-hearted soldiers us last week, we would not have such a good harvest.A. hel

If these kind-hearted soldiers us last week, we would not have such a good harvest.
A. helped
B. had helped
C. had not helped
D. didn’t help

A. helpedB. had helped(答案→)C. had not helpedD. didn’t help解析：考查错综时间条件句。从主句 would not have可以看出与现在相反，再观察从句状语 last week可知，从句与过去相反，使用had done,结合句意,应用否定，故选C。句意，如果这些热心的战士上周没有帮助我们，我们就不可能有这么好得收成。

这个答案应该是对的