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一、单句填空
1.The problem puzzled me so much that I stopped for a moment to try to make
　　　out.
2.—Do you know where David is? He is not in the office.
—Well,he
　　　have gone far—his coat
’s still here.
3.In the good care of the nurses,the boy is
　　　(gradual) recovering from his heart operation.
4.Because
　　　the recent bad weather,the project is several weeks behind schedule.
5.—Mum,I don
’t want to take the medicine.
—Oh,dear,you should know that good medicine for health
　　　(taste)bitter t ...