7.The book 　　 (cost)me 100 yuan.So it’s very expensive.　

答案：cost

6.-Hi,Peter!What bus 　　 you 　　 (wait)for?　

- No.3 bus.　

答案：are;waiting

5.It 　　 (take)me 2 hours to get to the police station.　

答案：took

4.Tom put his bag on the desk and 　　 (go)out.　

答案：went

3.　　 he 　　 (learn)to swim in 1990?　

答案：Did;learn

2.Lucy 　　 (choose)a blue skirt for herself last night.　

答案：chose

1.It’s four in the afternoon.Jack with his friends,　　(swim)in the lake.　

答案：is swimming

5.know,what,do,to,you,do(?)　

答案：Do you know what to do?　

4.bed,in,more,minutes,I,can,spend(.)　

答案：I can’t spend more minutes in bed.　

3.books,aren’t,those,black,your(.)　

答案：Those aren’t your black books.