In the last two decades world production of electricity has roughly doubled, with the developing nations _______ the developed.
A. surging
B. overtaking
C. hauling
D. reversing
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Language and culture are closely related with each other, and the understanding of one requires the understanding of _______.
A. other
B. another
C. the other
D. some other
The boss was in a temper. Do you know _______ made him so angry?
A. what was it
B. what it was that
C. what it was
D. what was it that
The pumpkin was known in North America and South America 5,000 years ago but it _______ in North America for over 8,000 years according to some researchers.
A. may have been grown
B. will have been grown
C. would have been grown
D. should have been grown
Joe is always wearing _______ shoes because his feet are in different sizes and he has to go to a special shoe store.
A. worn-out
B. soft
C. mismatched
D. polished