Ⅰ.单句语法填空
1．Every evening after dinner，if not tired(tire) from work，I will spend some time playing with my son.
2．—What should I do with this passage?
—Find(find) out the main idea of each paragraph.
3．Look out for cars when crossing(cross) the street.
4．They don't use more water than (it is) necessary(necessary)．
5．On arriving(arrive) at the village，the doctor began to operate on the wounded soldiers.
6．—How long are you staying?
—I don't know.It depends(depend)．
