單項(xiàng)選擇題

This kind of material expands（）the temperature increasing.

A.to
B.for
C.with
D.at

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單項(xiàng)選擇題

People at the party worried about him, because no one was aware（）he had gone.

A.of where
B.of the place where
C.where
D.the place

單項(xiàng)選擇題

A sudden noise of a fire-engine made him（）to the door.

A.hurrying
B.hurried
C.hurry
D.to hurry