Nothing can stop such a thing from _____ again.
A. happen B. to happen C. happening D. happed
She has taken my book ___.
A. by mistaken B. by mistake C. for wrong D. make a mistake
I met her ___ in a crowded bus.
A. by mistake B. on purpose C. by accident D. accident
Not only my friends but also I _____ interested in tennis.
A. be B. am C. is D. are
It is my ___ to talk to her.
A. pleased B. pleasant C. pleasure D. please
The girl is ___ to go to school.
A. enough old B. old enough C. too old D. old too