A variety of books _____________ the children of different ages.
A. are interested in B. is interested in
C. are intending for D. is intending for
This special strain of rice ___________ one-third more of the crop in the same field.
A. makes possible to produce B. makes it possible to produce
C. make possible producing D. make it possible producing
The rich_____ not always happy. .
A. is B. are C. has D. have
The teacher, with 6 girls and 8 boys of her class, _______ visiting a museum when the earthquake struck.
A. was B. were C. had been D. would be
______ there is a will, there is a way.
A. When B. That C. While D. Where
It is difficult for any of us to eat better, exercise more and sleep enough _________ we know we should.
A. despite B. even though C. as if D. unless
