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Unit 2 Sailing the oceans Period 3 Grammar & Writing 同步精练（人教版选修9，课标通用） 时间：45分钟 .用括号内所给动词的适当形式填空 1．As you can see, the number of cars on our roads________(keep) rising these days. 2．I have to go to work by taxi because my car________ ________ ________(repair) at the garage. 3．What we used to think________(be) impossible does seem possible now. 4．The moment the 28th Olympic Games________ ________(declare) open, the whole world cheered. 5．The use of credit cards in place of cash________ ________(increase) in recent years. 6．Newton________ ________(explain) the movements of the moon from the attraction of the earth. 7．Since I won the big prize, my telephone hasn't stopped ringing. People________ ________(phone) to ask how I am going to spend the money. 8．She was surprised to find that after so many years the small town remained________(unchange)． 9．When all those present________ ________(seat), he began his lecture. 10．If I________ ________(see) him yesterday I would have asked him about it. 答案 1.keeps 2.is being repaired 3.was 4.were declared 5.has increased 6.has explained 7.are phoning 8．unchanged 9.were seated 10.had seen | 
