( ) 26. —What_________ useful book it is!
—Yeah, it tells you how to play_________ guitar.
A. an； the B. a； a C. a； the D. an； a
( ) 27. I have two brothers. One is a teacher, _________ is a doctor.
A. another B. other C. others D. the other
( ) 28. —How many_________teachers are there in your school?
—_________them _________over two hundred.
A. woman; The number of; is B. women; The number of; is
C. woman; A number of; is D. women; A number of; are
