题干

If you see any rubbish(垃圾) on the school playground, you'd better________.     

A:put it up

B:turn it up

C:put it on

D:pick it up

上一题 下一题 0.0难度 选择题 更新时间:2010-04-09 02:06:10

答案(点此获取答案解析)

D