I was cooking in the （）when the doorbell rang.

The old man was remembered by people because he had （）many useful things during his life.

A.prized
B.know
C.finish
D.invented

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If you try all kinds of jobs，not only will you find out what you want to do，but you will also （）up a surprising amount of useful information as you go along.

A.pick
B.equipment
C.drug
D.director

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