His ability is beyond question; ______ has been in doubt is ______ he is prepared to work hard.
A. what; that B. what; whether C. which; whether D. that; that
Most people would agree that nuclear science should be developed to benefit the human beings_______ harm them.
A. more than B. other than C. better than D. rather than
Many new means__________ to prevent the river ____________.
A. have found, from polluting
B. have found, from being polluted
C. have been found, from being polluted
D. has been found, from being polluted
I like _____ in the spring when the weather is warm and everything begins to grow.
A. this B. that C. these D. it
Is it to hold the 2010 World Exhibition _______ makes Shanghai the focus of the world?
A. when B. that C. which D. what
We can never expect bluer sky unless we create less polluted world.
A. a; a B. a; the C. the; a D. the; the
