单项选择题
We have kept（）our friendship by writing to each other, so we are true friends.
A.back
B.up
C.off
D.down
点击查看答案&解析
相关考题
-
单项选择题
We failed in our（）to climb the mountain.
A.trial
B.contempt
C.desire
D.attempt -
单项选择题
If you want to learn something, you had better pay（）in class.
A.care
B.respect
C.attention
D.notion -
单项选择题
In addition to rice, we need to（）our diet with fish, meat and vegetable.
A.supplement
B.replace
C.add
D.eat
