单项选择题
We’d better （）economic speed （）fuel consumption.
A.take；save
B.to take；save
C.take；to save
D.to take；to save
点击查看答案&解析
相关考题
-
单项选择题
This machine （）out of order very often, but now it works well.
A.is used to be
B.was used to be
C.used to be
D.was used to -
单项选择题
When we arrived here yesterday, their ship （）for three days.
A.has left
B.had left
C.has been away
D.had been away -
单项选择题
The accident resulted （） the motorman’s carelessness.
A.in
B.to
C.from
D.by
