The flight to Beijing was canceled ________ the heavy snow．

The flight to Beijing was canceled ________ the heavy snow．

A.as

B.for that

C.because

D.because of

答案及解析： D

解析：

as，for that，because都用于引导原因状语从句，但because of无此用法，它后面只跟名词或代词．根据题目，这里给出的是一个名词，应该用because of．