Harry is feeling uncomfortable. He _____ too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
For years scientists have been worried about the ______ of air pollution on the earth's natural conditions.
| A．effect | B．result |
| C．account | D．cause |
Don’t be angry with us. We ____ with you together, but we were busy with our final reports when you called in.
| A．would eat out | B．must have eaten out |
| C．should eat out | D．could have eaten out |
With the progress of the society, women all over the world have improved their social ______ and rights.
| A．fabric | B．status | C．target | D．burden |
It wasn’t until near the end of the letter ______ she mentioned her own plan.
| A．where | B．that | C．why | D．when |
The lift in that tall building went wrong and got trapped ______ the floors. People in it had no way out and were in panic.
| A．among | B．on | C．between | D．in |