1.It is good for your eyes when you do eyes exercises everyday.
2.Does Lin Tao often help you with your Chinese?
3.Did it rain hard yesterday?
4.How many times a week does he do his homework?
5.She doesn't often do housework at home.
6.I didn't buy some fruit this morning.
7.Does Miss Wang like her students?
8.How long was you away from school?
9.I don't think that a chicken can swim.
10.Drinking plenty of milk can keep your health.