—What happened to Tom?

—He ______ his leg while playing football with his classmates.

A. had broken     B. has broken      C. broke           D. was breaking

He _____ his leg when he _____ in a football match against another school.

　 A. broke; played 　 B. was breaking; was playing

　 C. broke; was playing 　 D. was playing; broke

He ________ his leg when he ________ a football match against another school．

1. A.
   broke; played
2. B.
   has broken; was playing
3. C.
   broke; was playing
4. D.
   broke; had played

He _______ his leg when he _______ in a football match. 

A broke, played              B. was breaking, was playing

C. broke, was playing     D. was breaking, played

He ________ his leg when he ________ in a football match against another school．

1. A.
   broke; played
2. B.
   were breaking; was playing
3. C.
   broke; was playing
4. D.
   was breaking; played