河南成教 / 英语（四）
正确率：100%
6、This is not an economical way to get more water; _ _ _ _ _ _ , it is very expensive.
A. or else
B. in short
C. on the contrary
D. on the other hand
A. or else
B. in short
C. on the contrary
D. on the other hand
参考答案：
佳题速递：