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單項選擇題

On hearing the bad news, she sprang up （）

A.for a start
B.with a start
C.at the start
D.from the start

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單項選擇題

At first, the speaker was referring to the problem of pollution inthe country, but halfway in her speech, she suddenly（）to another subject.

A.committed
B.switched
C.favored
D.transmitted

單項選擇題

Your advice would be（）valuable to him, who is at present at his wits' end.

A.exceedingly
B.excessively
C.extensively
D.exclusively

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