找出下面各句中的错误，并改正。
1. Tom is going study French. __________
2. The children are playing the football in the park. __________
3. He was born on China.   __________
4. Yang Liwei went in a spaceship but made a video. __________
5. The ducks saw the picnic and eat it. __________

Last weekend we ____ in the park. (   )

A．read books

B．sing

C．climb the mountain

写出下列动词的原形。
【小题1】took ________
【小题2】began ________
【小题3】learned ________
【小题4】became ________
【小题5】threw ________

找出不同类的单词：(    )

A．isn’t

B．aren’t

C．wasn’t

按要求写单词。
1. ask ( 反义词 ) ____________
2. country ( 复数形式 ) ____________ 
3. cities ( 原形 ) ____________ 
4. tall ( 最高级 ) ____________ 
5. hear ( 过去式 ) ___________