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單項選擇題

It was well known that Thomas Edison（）the electric lamp.

A.invented
B.discovered
C.found
D.developed

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單項選擇題

After stopping for a few minutes, the bus moved（）to its next stop.

A.forward
B.off
C.with
D.on

單項選擇題

The teacher spoke so fast that it was hard for the students to（）what he was saying.

A.take in
B.take out
C.take up
D.take over

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