问题

The volunteers many signs to remind people to protect the environment.

A:put on
B:put up
C:put down
D:put off;

正确答案是：

同类题型

“Was Andrew there when you arrived?” “Yes, but he ______ home soon afterwards.”

My brother wants ____ orange, not ____ orange juice,

－A nice tie! A present－Yes, it is. My aunt it to me for my last birthday.

On Oct. 29, the famous Chinese pianist Lang Lang was named as United Nations Messenger of Peace, ________ means he will help promote(促进) global education.

He will stop showing off, if no notice ＿＿＿＿＿ of him