It is more than six months now（）she left home and it will be another three days （）she returns home.

—Will you waste time and money on that？—Certainly （）.

A.I not
B.don’t
C.not
D.no

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Professor，would you slow down a bit，please？I can’t （）you.

A.keep up with
B.put up with
C.make up to
D.hold on to

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