--- Your parents bought you _____ books last year， right?
---Yes. _________ them is 20.
A. the number of； a number of
B. the number of； the number of
C. a number of； the number of
D. a number of； a number of
---Do you know______?
---Of course. It will be hosted(主办) by Beijing and Zhangjiakou.
A. when will the 2022 Winter Olympics be hosted
B. when the 2022 Winter Olympics will be hosted
C. how the 2022 Winter Olympics will be hosted
D. which city will host the 2022 Winter Olympics
---Wow， my best friend Anna got an A in her test!
---______ wonderful news it is!
A. What B. What a C. How D. How a
---Excuse me， would you please speak a little more ______?
---Sorry， I thought you could follow me.
A. sadly B. quickly C. loudly D. slowly
---Remember not ______ rubbish while climbing the mountain. It’s bad for the environment.
--- I will keep that in mind.
A. drop B. dropping
C. to drop D. dropped
While I was talking on the phone， Helen _____ The Little Prince.
A. will watch B. was watching
C. watches D. is watching
