Unit 4 单元测试一单项选择( )1.Walk _ this street, then turn right_ the second crossig.A.past; at B.along; at C.cross; to D.to; at( )2.My father has a habit of jogging _ the Jinchuan River for an hour in the morning. A.between B.along C.over D.through( )3. Theres a wallet _ on the ground. Whose is it?A.lie B.lies C.lying D.to lie( )4. Practise more,_ you will pass the coming exams. A.or B.and