1 . By August 1939, Winton ______ (save) 669 children. (所给词的适当形式填空)

2 . It was the first time that I __________ (be) a volunteer in MSF. (所给词的适当形式填空)

3 . When we got to the airport, the plane carrying him ________(take) off. (所给词的适当形式填空)

4 . All the furniture ________ (move) to another room before he came. （所给词的适当形式填空）

5 . When she realized that she had left her handbag in the taxi, the taxi _________ (disappear). (所给词的适当形式填空)

6 . When the air crash occurred, the plane ________ (fly) for 10 hours. (所给词的适当形式填空)

7 . Arthur was surprised when he arrived home because the tornado ________ (take) off the feathers of his chickens. （所给词的适当形式填空）

8 . By the time he arrived here, all the guests ________ (go). （所给词的适当形式填空）

9 . He asked me where I ________ (go) the week before. （所给词的适当形式填空）

10 . Jack didn’t realize that he_________ (leave) his electronic dictionary on the bus until he got home. （所给词的适当形式填空）