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單項(xiàng)選擇題

Can you （） what is wrong with the washing machine?

A.find out
B.find
C.look for

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We ran all the way to （） the bus that was going to the zoo.

A.take
B.get
C.catch

單項(xiàng)選擇題

It was Dr. Rontgen who （） X-rays.

A.discovered
B.invented
C.made up

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