Don't open the door _____ it is so cold. [ ]A. because B. because of C. since D. as -九年级英语

题目简介

Don't open the door _____ it is so cold. [ ]A. because B. because of C. since D. as -九年级英语

题目详情

Don't open the door _____ it is so cold.
[     ]
A. because
B. because of
C. since
D. as
题型:单选题难度:中档来源:同步题

答案

C

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