I have an appointment ________ Professor Li, but I need to change it.
| A．from | B．in | C．with | D．to |
The problem is _____ we can master modern science and technology in a short time.
| A．if | B．that | C．what | D．how |
. He ______ live in the country than in the city.
| A．prefers | B．likes to | C．has better | D．would rather |
--- " ______ he open the door?"
--- "Yes, please."
| A．Shall | B．Will | C．Can | D．Would |
I will certainly be surprised if he ______ to tell them what he knows.
| A．dare | B．will dare | C．dared | D．dares |
______ you make a little room for me?
| A．Should | B．Could | C．May | D．Must |