6. Once a _____ of lions lived in the forest.

　　A) pride B) swarm C) troupe D) herd

　　7. A_____ of football players arrived at the hotel last night.

　　A) gang B) team C) troupe D) school

　　8. A flock of birds_____ circling the field.

　　A) was B) were C) is being D) are being

　　9. Some _____have been brought in from the car.

　　A) package B) packages C) the package D) the packages

　　10. The elderly _____increasingly asserting their rights.

　　A) is being B) are being C) is D) are

　　答案：6 a 7 b 8 a 9 b 10 d

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