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在下句填入适当的词，使之与上句意思相同或相近
These are heavy bags.
These bags ________ ________.
—Can you mend it?
—I think so.
—Yes, ________ ________
Are all the things in the car?
Is ________ in the car?
在空白处填入适当的词，使下句与上句意思相同或相近
It's time for class.
It's time ________ ________ class
Who's away?
Who's ________ ________ ?