In our school library there __________ a number of books on science and the number of them __________ growing larger and larger.
A. is; are B. are; is C. has; is D. have; are
In our school library there __________ a number of books on science and the number of them __________ growing larger and larger.
A. is; are B. are; is C. has; is D. have; are
B