题目内容

If we (know) ____what the future would have in store for us, some of us would be more confident.

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When used to cut meat the knife needs (sharp) ____from time to time.

This opinion was held by (actual) ____all the scholars.

If she (live) ____near her office she would be in time for work.

We would appreciate the opportunity to show you how (efficiency ) ____we canserve you.

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