He was shocked ________ his son playing all days.

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Hunters can always hear birds whistling ________ the edge of the woods.

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According to the art dealer, the painting ________ to go for at least a million dollars.

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Alice is fond of playing ________ piano while Henry is interested in listening to 　　   music.

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The number of trees that ________ cut down ________ 3000 last year.

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I'll see to ________ that we are back before 4∶00.

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While seeing the ________ movie, most of the ________ children cried with great fear.

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After an earthquake, you should be careful. You might be hit by the ________ buildings.

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________ here will get us out of trouble.

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On ________ the room, he began to cry.

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