改错 (每题2分，共10分)
【小题1】Mr. Green has a unhappy family. He lives happily with friends.
A B 注意时态和 C D
【小题2】Thanks for your help, I finally passed the final exam.
A B C D
【小题3】Zoosare very importantplace.
A B C D
【小题4】I have been to China for over 20 years.
A B C D
【小题5】I was very surprise to find hardly anyone there when I visited the zoo.
A B C DB a – an
网友回答
(答案→)B a – an
解析：根据自己的书写的适当形式和，语法知识来来写着空。