六、用适当的介词填空。
【小题1】We are running ______ the playground now.
【小题2】Can I keep the book ______ three weeks?
【小题3】The number______ his room is 6608.
【小题4】Can you show the new student ______ our school?
【小题5】Our teacher is talking ______ some boys now.
【小题6】Look! Sam is dancing ______ a beautiful girl.