It is not always easy for the public to see _____ use a new invention can be of to human life.
| A．whose |
| B．what |
| C．which |
| D．that |
The film Avatar will be on tonight but it’s at l：30am. I don’t want to that late.
| A．stay up | B．show of | C．put up | D．get off |
—Don’t hesitate to buy the dress if you like the design and pattern.
—No, I won’t,the price is reasonable.
| A．as soon as | B．as well as | C．as far as | D．as long as |
I am delighted as chairman of the students，union last winter.
| A．to appoint | B．to be appointed |
| C．to have appointed | D．to have been appointed |
The beautiful sunset our attention，and we stopped to watch it.
| A．caught | B．paid | C．fixed | D．slipped |
We're still at the airport. If it weren’t for the delayed flight, we _____the concert right now.
| A．can be enjoying | B．must have enjoyed |
| C．would be enjoying | D．should have enjoyed |