As a rule, you can borrow only two books ______ in the library.

1. A.
   at one time
2. B.
   at a time
3. C.
   in no time
4. D.
   at times

As a rule, you can borrow only two books ______ in the library.

   A. at one time          B. at a time            C. in no time  D. at times

As a rule, you can borrow only two books ______ in the library.

   A. at one time          B. at a time            C. in no time                       D. at times

As a rule, you can borrow only two books ______ in the library.

As a rule, you can borrow only two books ______ in the library.