II.
1.Riding a bike is healthier than driving a motorbike.
2.Da nang is one of the most worth-of -living cities in Vietnam.
3.What were you doing at 6p.m yesterday?
4.I ithink it will rain this afternoon.
5.When I saw her,she was sitting with her boyfriend in the park.
6.Look!The boy is trying to climb the wall.
7.Tim is the best sudent in my class.
8.The Earth goes around the Sun.
9.Mai didn't attend class last week because she was ill.
10.My brother loves doing sport very much.