單項(xiàng)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


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1.單項(xiàng)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

2.單項(xiàng)選擇題She cut her hair short and tried to()herself as a man.

A.decorate
B.disguise
C.fabricate
D.fake

4.單項(xiàng)選擇題The French pianist who had been praised very highly()to be a great disappointment.

A.turned up
B.turned out
C.turned in
D.turned down

5.單項(xiàng)選擇題One day, you will have to()this foolish behavior.

A.pay
B.pay for
C.pay back
D.pay off