Last week we saw ____ Li Ming ___ Mary.
A. neither; or
B. either; nor
C. all; and '
D. not; but
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My mother bought not apples____ two interesting books for me.
A. or
B. but
C. and
D. so
Mr. Zhang felt a little tired, ____ he still went on working.
A. but
B. and
C. so
D. or
Our teacher is very busy, ____ he often help us with our lessons.
A. or
B. but
C. and
D. though
Tom got ill, ___ he still attended the important meeting.
A. so
B. because
C. but
D. nor
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