A modern city has been set up in ________ was a wasteland ten years ago .
| A．what | B．which | C．That | D．where |
33. Here is such a difficult text _____ none of us can understand.
| A．as | B．which | C．that | D．where |
32. Hardly ______ when the bus suddenly pulled away.
| A．they had got to the bus stop | B．they got to the bus stop |
| C．did they get to the bus stop | D．had they got to the bus stop |
31. The room is in a terrible mess; it _______ cleaned.
| A．can’t have been | B．shouldn’t have been |
| C．mustn’t have been | D．wouldn’t have been |
30. Please write a notice for the students and ______ .
| A．put it up | B．put up it | C．put it on | D．put on it |
29. If city noises____from increasing, people___shout to be heard even at the dinner table 20 years from now.
| A．are not kept; will have to | B．are not kept; have to |
| C．do not kept; will have to | D．do not kept; have to |