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單項選擇題

There are often advertisements（）to other websites on the Internet.

A.lead
B.led
C.leading
D.to lead

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單項選擇題

Are you interested in（）sport?

A.over-road
B.on-road
C.away-road
D.off-road

單項選擇題

What's the（）difference between the two parties?

A.essential
B.necessary
C.dominant
D.great

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