改错（把正确的句子写在横线上）
1.A moon is yellow .A sea is blue .
2.This is a apple.
3.They are a strong lions.
4.One or two is three.
5.After class ,I well go to home.
6.In night ,I often watch TV.
7.On 7 o'clock ,I usually ger up .
8.I went to Beijing by a bus.