9. It is implied that there will be fewer road accidents if ______. A: the drivers are more considerate of other people B: there are fewer cars or walkers in the street C: the motorists are not always in a hurry D: the passengers are calm but not confused before the accidents

Every year thousands of lives ______ in road accidents because of careless driving.

______ market conditions may improve soon because of the new policy.

Nuclear power plants, ______ to some serious breakdowns, have become a center of controversy. A: having recently been subjected B: recently having been subjected C: have recently subjected D: recently have subjected

The author listed three factors that have caused road accidents, including ________.