單項(xiàng)選擇題The association is()to raising funds to help the blind.

A.conducted
B.committed
C.concentrated
D.concerned


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2.單項(xiàng)選擇題It()as a shock to realize that I was not alone in the room.

A.came
B.appeared
C.arrived
D.reached

3.單項(xiàng)選擇題()so many people in the United States been out of work as today.

A.More than ever before
B.In the past, there have never
C.Never before have
D.Formerly, there never were

5.單項(xiàng)選擇題The problem()when the students refused to do their homework.

A.arose
B.aroused
C.rose
D.raised