38、Recently, there ________ a boom in population mobility, and according to the survey in 2000, 17 percent of the population _______ every year.

       A. is; moves          B. has been; moves             C. is; move                   D. has been; move

37、Anyone who has spent time with children          the difference in the way boys and girls           similar situations.

       A．aware of; respond to                           B．is aware of; respond to

       C．aware; responding                               D．is aware of; respond

36、If the safety protections against the accidents         , the miners         a chance to survive then.

       A．were taken; would have                        B．had been taken; didn’t have

       C．had been taken; would have had            D．were taken; would have

35、D

34、

I wouldn’t think it ____ to ask him to ____ the club.

A. worthwhile; join                B. worthwhile; join in    

C. worthy; join                      D. worthy; join in

33、After five days’ climbing in the mountain, they reached ____ they thought was the place they’d been dreaming of.

A. that         B. where        C. which        D. what

32、I’m moving to the countryside because the air there is much fresher than ____ in the city.

   A. ones          B. one         C. that         D. those

31、-- Can I call for some friends and spend the day outside with them, Mom?

--- ____ I’ve told you to have a weekend on your own.

   A. Why so?                   B. Why not?      

   C. How come?               D. So what?

30、--- I hear Robert has gone to Harvard University for his master’s degree.

--- Oh, how nice! Do you know when he ____?

A. was leaving      B. left        C. had left    D. has left

29、--- Did your boss phone you again the next day?

--- No, it was a fortnight ____ he gave me a second call.

   A. that           B. when        C. before     D. since