It was_________your timely help that we could solve the problem.

问题描述:

It was_________your timely help that we could solve the problem.
A.for B.because C.thanks to D.as a result
其他为什么不能选?

A for 为了 表目的
B because 后面跟句子,这里 your timely help 是名词短语,要用也得用because of.
D as a result (of)没加of.
选 C thank to 幸亏A. for也可以表原因啊it is for +原因。没见过这样表原因的。常用的是 It is because of +原因