These books ______ out of the reading room. You have to read them here.

A. can't take                 B. must be taken    C. can take            D. mustn't be taken

These books ________ out of the reading room. You have to read them here.

A. can't take

B. must be taken

C. can take

D. mustn't be taken

These books ________ out of the reading room. You have to read them here.

[　　]

These books ________ out of the reading room．You have to read them here．

1. A.
   can’t take
2. B.
   must be taken
3. C.
   can take
4. D.
   mustn’t be taken