50,000 books are a large amount (数量) in our school library, but they are ________ than we need.

1. A.
   far more
2. B.
   so many
3. C.
   far fewer
4. D.
   quite a lot

50 years ago Guangzhou ________ as big as it ________ now.

1. A.
   was; is
2. B.
   wasn't; was
3. C.
   wasn't; is
4. D.
   was; was

---- $ 50 for such a T-shirt! You ______ be joking!

---- I’m serious! It’s made of silk.

　 A. must　　　　　　 B. may　　　 C. can　　　 D. can’t

50,000 books are a large amount (数量) in our school library, but they are ________ than we need.

[　　]