31I called my father and told him about my progress. He sounded really ______.

　　A) happy     B) happily     C) happiness     D) unhappy

　　32Would you mind ______ me a small favour?

　　A) do    B) doing    C) to do    D) to doing

　　33I don't believe in letting children ______whatever they want to do.

　　A) do    B) doing    C) to do    D) to doing

　　34The Red Cross is always the first ______ help to victims when a disaster happens.

　　A) provide    B) providing    C) to provide    D) to providing

　　35The little girl looks ______ with her hair short.

　　A) lovely    B) happily    C) attractively    D) tidily

　　36Reading provides me with fun and it also enables me ______ the world around me.

　　A) understand    B) understood    C) to understand     D) understanding

　　37Once you make a decision, you’d better ______ your mind.

　　A) don’t change    B) not change    C) not to change    D) not changing

　　38He refused ________ because he thought he was innocent.

　　A) apologized    B) apologizing    C) to apologize    D) apologize

　　39.The thief denied _______ the woman’s mobile phone.

　　A) steal    B) to steal    C) stealing    D) stole