_____ such heavy pollution already, it may now be too late to clean up the river

题型：同步题难度：来源：

_____ such heavy pollution already, it may now be too late to clean up the river.

[ ]

A. Having suffered
B. Suffering
C. To suffer
D. Suffered

答案

举一反三

______ the programme, they have to stay there for another two weeks.

[ ]

A. Not completing
B. Not completed
C. Not having completed
D. Having not completed

题型：同步题难度：| 查看答案

_____ such heavy pollution already, it may now be too late to clean up the river.A. Having suffered
B. Suffering
C. To suffer
D. Suffered

题型：同步题难度：| 查看答案

Technology is developing so rapidly that _____ for only a year, my cellphone is out-of-date.

[ ]

A. using
B. having been used
C. having used
D. is using

题型：同步题难度：| 查看答案

_____ in the queue for half an hour, the old man suddenly realized he had left the cheque in the car.

[ ]

A. Waiting
B. To wait
C. Having waited
D. To have waited

题型：同步题难度：| 查看答案

_____ many times, he finally understood it.

[ ]

A. Told
B. Telling
C. Having taken
D. Having been told

题型：山西省会考题难度：| 查看答案