Unit 7 Sports and Good Health Lesson 42：Know Yourself课时作业（含解析）

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Unit 7 Sports and Good Health Lesson 42：Know Yourself
一、单选
1.The mouse ________ to the computer was bought just now.
A.connected B.connects C.connecting D.is connected
2.Before Mr. Green started out for a travel, he ________ the water supply (供应).
A. put off B. shut off C. go off D. show off
3.—What...