单项选择题

A．how
B．whether
C．when
D．whatever
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单项选择题
A．concretelyB．consideratelyC．conciselyD．considerably
A．concretely
B．considerately
C．concisely
D．considerably
单项选择题
A．greetedB．caredC．amusedD．directed
A．greeted
B．cared
C．amused
D．directed
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