______ all these books, the red one is most popular among youngsters.
A. With
B. Of
C. In
D. By
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She made up her mind ______ back home in spite of the heavy rain.
A. to go
B. going
C. gone
D. go
Owing to the sore throat, he had difficulty ______ loudly in public.
A. spoken
B. to speak
C. speaking
D. spoke
We ______ the football match for half an hour by the time she arrives at the sports center.
A. might have watched
B. will have watched
C. ought to have watched
D. must have watched
He had ______ to do with the fire, so he shouldn’t take the responsibility.
A. nothing
B. anything
C. something
D. everything