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單項(xiàng)選擇題

She can run 100 meters in 13 seconds without（）herself.

A.executing
B.inserting
C.exerting
D.devoting

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單項(xiàng)選擇題

We must（）these trash ideas.

A.discard
B.dispose
C.discharge
D.dismiss

單項(xiàng)選擇題

Most parents encourage their children to take an active part in social events,（）those events do not interfere with their studies.

A.lest
B.though
C.unless
D.provided

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