—Did you find your pen this afternoon?
—No, I didn’t find _________, but I’ve bought _________.
| A．it; it | B．it; one | C．one; one | D．one; it |
—Hi, David, I heard you had an accident this morning．
—Yes．Luckily, I hit the brakes in time ______ I would have been injured badly．
| A．and | B．but | C．or | D．so |
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 |