多项选择题
The professor could hardly find sufficient grounds ______ his arguments in favor of the new theory.
A．on which to base
B．which to base on
C．to base on
D．to be based on
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多项选择题
The man to whom we handed the forms pointed out that they had not been ______ filled in.
A．consequently
B．regularly
C．comprehensively
D．properly
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多项选择题
Apart from taking care of her children, she has to take on such heavy ______ housework as carrying water and firewood.
A．time-consumed
B．timely-consumed
C．time-consuming
D．timely-consuming
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