_________fit, we ought to learn more about our body and be careful with what we eat.
A．Keeping B．To keep C．Having kept. D．To have kept
Of all the girls, Jane spent_________time and made_________mistakes.
A. less; fewer B. much; many C. the least; the fewest D. more; most
How_________I help them to understand when they won’t listen to me?
A．can B．would C．may D．must
The film is very humorous but_________can be enjoyed unless you understand English culture.
A．everything B．something C. nothing D．anythingh
—Your composition is full of mistakes.
—I wish I _________more careful.
A．would have been B．had been C．would be D．were
．_________life began on the earth is one of the biggest puzzles to scientists.
A．How B．What C．Where D．That
