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 D
