11. Did you smell something ____？

    A. having burnt       B. to have burnt    C. burning   D. to be burning

    12. John was caught _     _ his neighbor's apples the other day.

    A. to have stolen    B. stealing     C. to steal    D. having stolen

    I3. She is going to town _     _.

    A. to repair her watch     B. to have repaired her watch

    C. to have her watch repaired    D. for repairing her watch

    14. When he came back after an absence of 20 years， he found his hometown completely____.

    A. changing      B. to be changed    C. to change    D. changed

    15. When visiting a foreign country， I sometimes find it difficult____.

    A. to make myself understood      B. to make others understand myself

    C. to make myself understand      D. making others understand me

    16. Because air pollution has been greatly reduced， this city is still____.

    A. a good place to live         B. a good place for living in

    C. a good place to be lived in  D. a good place to live in

    17. There is no point ____to play the piano， unless you practice every day.

    A. to learn     B. by learning      C. having learned    D. in learning

    18. You didn't hear us come in last night. That's good. We tried ____ noisy.

    A. to not be     B. not to be    C. being not    D. not being

    19. He had us ____ all through the meal.

    A. laugh    B. laughed    C. laughing    D. to laugh

    20. The police inspector spoke to the little girl kindly _     _her.

    A. not to frightening      B. in order to not frighten

    C. so as not to frighten    D. for not frightening

    CBCDA DDBCC