Something ___ to save our earth. Do you think so?
| A．can do | B．must do | C．has to do | D．must be done |
Better be more careful______you've made a mistake.
| A．when | B．where | C．and | D．that |
－What about______party you went to yesterday evening?
－Oh, it was boring, you know, party like that!
| A．the; a | B．a; the | C．the; / | D．the; the |
25．A heavy drought is hitting the south－west part of China, ______severe problems for hundreds and thousands of people and cattle to get fresh drinking water.
| A．causing | B．caused | C．to cause | D．having caused |
－Why not follow the recorder and practice your spoken English?
－______
| A．That's all right. | B．Sounds a good idea. |
| C．Sorry, I forgot it. | D．You're so kind. |
When she realized that the bike______towards her, she quickly turned aside.
| A．ran | B．was running | C．had run | D．has run |