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單項(xiàng)選擇題

Since William had been seriously ill for several months, his parents were worried about（）to return to school full-time.

A.he wanted
B.he wanting
C.him to want
D.his wanting

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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

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