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28. ________ 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
29. Having a trip abroad is certainly good for the old couple, but it remains ________ whether they will enjoy it.
A. to see B. to be seen C. seeing D. seen
30. The research is so designed that once ________ nothing can be done to change it.
A. begins B. having begun C. beginning D. begun
31. It is said that in Australia there is more land than the government knows ________.
A. it what to do with B. what to do it with
C. what to do with it D. to do what with it
32. A cook will be immediately fired if he is found ________ in the kitchen.
A. smoke B. smoking C. to smoke D. smoked
33. I’m going to the supermarket this afternoon. Do you have anything ________ ?
A. to be buying B. to buy C. for buying D. bought
34. The pilot asked all the passengers on board to remain ________ as the plane was making a landing.
A. seat B. seating C. seated D. to be seating
35. Victor apologized for ________ to inform me of the change in the plan.
A. his being not able B. him not to be able
C. his not being able D. him to be not able
36. Suddenly, a tall man driving a golden carriage ________ the girl and took her away, ________ into the woods.
A. seizing, disappeared B. seized, disappeared
C. seizing, disappearing D. seized, disappearing
