It's ________ us to give them all the help we can.

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We were wondering what to do when a PLA man ________.

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The railway ________ our village ________ the town is being built.

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He ________ his gun under the tree where he was ________.

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The fact ________ he had said nothing about it surprised everybody.

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The manager of the company didn't like Jack. That was ________ he was late for work several times in a week.

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I waited outside nearly half an hour ________ he opened the door and showed me in.

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Separated as the twins were, they still ________ in touch with each other.

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As the result of the new machine, the costs have been reduced ________ as much as 30%.

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The computer can recognize your voice and ________ your instructions.

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