—The food here is very nice. Thank you for inviting me. — .
A. All right； B. With pleasure；
C. Don’t thank me； D. Don’t mention it
—Go for a picnic this Saturday， OK? — . I love getting close to nature.
A. I believe it B. I’m afraid not
C. I don’t think so D. I agree
— Dad， could you tell me ? — Sorry， I don’t know.
A. who likes singing the song Little Apple most
B. Little Apple is sung by Chopsticks Brother(筷子兄弟)
C. why is the song Little Apple so popular
D. if all the people liked the song Little Apple
I am afraid he has some difficulty the chemistry problem．
A. to work on B. to work out
C. in working on D. in working out
— What did he say? — He asked me with my pet.
A. if I am playing B. where was I playing
C. whether I was playing D. that if I was playing
you have problems， you can call me.
A. Whenever B. Until C. Whatever D. While
