All of ______ sudden someone shouted, “It is time to put ______ end to the meeting.”
| A．a;an | B．a; / | C．/; an | D．/; / |
It is well-known to us all that knowledge is __ treasure, but practice is ___ key to it.
| A．a, ∕ | B．a, the | C．the, the | D．∕ , the |
— Do you have Mary's address?
— Sorry, I don't have it ______ me at present．
| A．to | B．on | C．for | D．from |
．Tom took the police to the spot ____ the accident happened．
| A．which | B．that | C．where | D．when |
You think you’re poor, but look at people in really poor countries—it’s all ____．
| A．relative | B．simple | C．similar | D．related |
．The large grassland, reaching out far away, looks extremely beautiful _______ the blue and clean sky．
| A．with | B．against | C．through | D．beyond |