---Do you know_______ the books on the shelves?
--- Sorry, I can’t count them, because there are _______books.
A. a number of; the number of
B. a number of; a number
C. the number of; a number of
You won’t pass the English exam ___________ you study hard.
A. if B. so C. unless
-----Jane has never been to such a beautiful country..
-----________________.
A. so have I B. Neither have I C. Neither do I
_________ of the population in this area __________ farmers.
A. Two thirds ,are B. Two thirds, is C. Two third, is
----How long _________ she _______ this book ?
----She _________it from the library two weeks ago.
A. has, kept; borrowed B. has, kept; lent C. has, borrowed; borrowed