1.I want to be a singer
You should practice your songs more .你应该多练练歌

2. Why don't practise every day?
Because I'mbusy, do not have enough time to do other things.
因为我很忙,没有足够的时间做其他事情
3.I want to have a pen
pal
You can find a pen pal
你可以去找一个笔友

4.I want to have a pet animal
You can go to pet store to buy a pet
你可以去宠物店买一只宠物
5.I wantto be a good student
You should learn to seriously complete the operation and compliance with school rules and regulations
你应该好好学习、认真完成作业和遵守学校的规章制度
6.I want to improve my Chinese
You can communicate more and the Chinese friends, many speak Chinese
你可以多和中国朋友沟通,多讲中文
7.I want to bea baskball piayer
You should practice more basketball
你应该多练习篮球