相关考题
-
单项选择题
It was convenient（）close to work.
A.to living
B.living
C.live
D.lived -
单项选择题
The problem is（）by pollution.
A.caused
B.because
C.due
D.because of -
单项选择题
The mistake was（）by carelessness of the assistant.
A.due
B.caused
C.because
D.owe
