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單項(xiàng)選擇題

One of the benefits of the new model is that it is easier（）than the old one.

A.operating
B.to be operated
C.to operate
D.operated

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單項(xiàng)選擇題

What（）of blood does Tom have?

A.kind
B.type
C.sort
D.category

單項(xiàng)選擇題

Let's not wait any longer, he might not（）at all.

A.turn over
B.turn up
C.turn on
D.turn down

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