摘要： The bed is made wood. It’s made three parts. A. of; up of B. from; of C. from; up of D. of; into
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－How many parts is the bed ________ wood?
－It's ________ three separate parts．
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A．is made from; made up of
B．made by; made up
C．is made up of; made by
D．made of; made up of