1 . Talented in both medicine and sports, Robin ________(tear) between becoming a doctor and an athlete when he graduated. (所给词的适当形式填空)

2 . Danny _________(study) English, Chinese and science. (所给词的适当形式填空)

3 . The girl ________ (freeze) when seeing her brother was taken away by the police. (所给词的适当形式填空)

4 . Slowly, and with the camera still held to my eye, I turned... and __________ (freeze). (所给词的适当形式填空)

5 . The other day, we brought along pieces of old bread and__________(feed) the birds. (所给词的适当形式填空)

6 . Had I known the party was so boring, I wouldn’t have come. It __________ (prove) a failure. (所给词的适当形式填空)

7 . I was so proud when my team ________ (win) the ice hockey competition.（所给词的适当形式填空）

8 . The crash ________ (occur) when the crew shut down the wrong engine.(所给词的适当形式填空)

9 . He ________ (sharpen) his knife in order that he cut meat easily . （所给词的适当形式填空）

10 . It suddenly ________ (occur) to him that he had an important meeting to attend the next morning. (所给词的适当形式填空)