单项选择题

They are always ready to ______ heavy responsibilities.

A．take in
B．take on
C．put on
D．put in
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单项选择题
We shall have to ______ if we want to go to Florida this summer.
A．lay up
B．save up
C．make off
D．put away
单项选择题
The teacher was ______ both in his marking of homework and also in his treatment of offenders.
A．merciful
B．forgiving
C．pitiful
D．lenient
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