37．At school our teachers do all they can　　　 us with our lessons.

A．help　　　 B．helping　　　 　　　 C．helped　　　 　　　　 D．to help

36．The leaves in the water produced a ______smell.

A．please　　 B．pleased　　　 　　　 C．pleasure　　　 　　　　　　　 D．pleasant

35．She can’t walk but she doesn’t have a wheelchair______

A．sit　　　　 B．sit in　　　　 　　　 C．to sit　　　　　 　　 D．to sit in

34．-How about going hiking this weekend?

-Sorry. I prefer______ rather than

A．to stay at home; go out　　　　 　　　　 B．to go out; stay at home

C．staying at home; go out;　　　 　　　　　　 D．going out; stay at home

33．Beijing is one of the ______ in the world today.

A．busiest city　　 　　 B．busiest cities　 C．busy city　　 　 　D．busy cities

32．My watch doesn’t work I must have it ______

A．repairs　　　　 　　　 B．repairing　　　 C． to repair　　　 D．repaired

31．We mustn’t pretend __ what we don’t know.

A．know　　　　　 　　 B．to know　　　 C．knowing　　 　D．to knowing

30．Li Ming is in poor health. He should pay more attention______ exercise.

A．to take　　　　 　　 B．to taking　　　 C．for taking　　 D．in taking

29．He must be from America, ______?

A．isn’t he　　　　 B．must be　　　 C．needn’t he　　　 D．is he

28．She_____ in a toy factory, bur now she has a shop of her own

A．is used to work　　　　　　　 B．was used to work

C．used to working　　　　　　 D．used to work