问题
We are told ________ everywhere. It’s our duty to keep our school clean.
A:not to make much noise
B:to throw waste paper
C:to draw
D:not to spit;
B:to throw waste paper
C:to draw
D:not to spit;
正确答案是：
同类题型
ago we didn’t know this , but recentscience______that people who don’t sleep well soon get ill
He is quite_______, he doesn’t want to eat rice or vegetables any more.
___ most of the earth’s surface is covered by water, fresh water is very rare and precious
. Yesterday I missed my feet on the stairsand had a bad fall. Luckily it was nothing serious ___.