He hasn’t yet arrived. He may, ______, come later.
A. but
B. if
C. or
D. however
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______ the students ______ the teacher knows anything about it.
A. Neither, nor
B. Either, or
C. Both, and
D. Not only, but also
He ran ______ quickly ______ I couldn’t catch up with him.
A. such, that
B. so, that
C. hardly, when
D. no sooner, than
Do what you have been told, ____ you will be punished.
A. and
B. but
C. or
D. after all
Take an umbrella ______ it rains.
A. in case
B. in any case
C. because
D. for
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