题目内容：
If there’s a leak, the first thing to do is to ______ the gas supply.A. break off
B. shut off
C. turn down
D. get down
参考答案：
选择题：If there’s a leak, the first thing to do is to ___
- 题目分类：中北大学-大学英语1
- 题目类型：选择题
- 查看权限：VIP
A. break off
B. shut off
C. turn down
D. get down