题目内容
4、Experts have been warning of the health risks caused by passive smoking
A.at a time B.at one time C.for some time D.for the time
试题答案
4、C
Experts have been warning ___ of the health risks caused by passive smoking.
A.at a time B.at one time
C.for some time D.for the time
查看习题详情和答案>>Experts have been warning _____ of the health risks caused by passive smoking.
A. at a time B. at one time C. for some time D. for the time
查看习题详情和答案>>Experts have been warning of the health risks caused by passive smoking
A. at a time B. at one time C. for some time D. for the time
查看习题详情和答案>>Experts have been warning ___ of the health risks caused by passive smoking.
A.at a time B.at one time
C.for some time D.for the time
查看习题详情和答案>>
Experts have been warning ____ of the health risks caused by passive smoking.
A. at a time B. at one time C. for some time D. for the time
查看习题详情和答案>>
Experts have been warning _______ of the health risks caused by passive smoking.
A. at a time B. at one time C. for some time D. for the time
查看习题详情和答案>>
Experts have been warning ________ of the health risks caused by passive smoking.
- A.at a time
- B.at one time
- C.for some time
- D.for the time
B. at one time
C. for some time
D. for the time