3．C．见1小题。

2．D．teach sb. to do.教某人做某事。注意其中的不定式也常用 how to do sth. 形式。

1．A．动词tell后面接带to的不定式作宾补。类似的动词还有ask, want, order等。

50．The funny story made us ____ .

　A．laugh

　B．laughing

　C．to laugh

　D．laughed

参考答案

49．I think it important ____ English well.

　A．learning

　B．learn

　C．to learn

　D．learned

48．Don't forget ____ her clean water every day.

　A．to give

　B．giving

　C．given

　D．give

47．It often takes me half an hour ____ home.

　A．walking

　B．to walk

　C．walked

　D．walks

46．The boy ____ Jack in Class One is my brother.

　A．call

　B．to be called

　C．calling

　D．called

45．Will you please let me ____ your new bike?

　A．have look at

　B．have a look

　C．to have a look at

　D．have a look at

44．Nothing could make her ____ .

　A．change her mind

　B．to change her mind

　C．changed mind

　D．changing her mind