The wire was found broken. And ______, there happened to be no one getting near.
| A．therefore | B．however | C．otherwise | D．fortunately |
____ the 1990s, the number of antelopes had fallen to about 50,000.
| A．During | B．Since | C．By | D．Over |
I'll never forget the day _______ I bought my own guitar with my own money.
| A．where | B．on which | C．on when | D．that |
--Are you sure to help me find____________ bed for my new house?
--Of course, but not now. I'm heading, for____________ bed and a good sleep.
| A．a, a | B．a, 不填 | C．the, a | D．a, the |
The old couple married for 40 years and never once____ with each other.
| A．they had quarreled. | B．they have quarreled |
| C．have they quarreled | D．had they quarreled. |
—Will you buy me a new iPod, Dad?
—OK. You __________have one if you promise to take care of it.
| A．might | B．must | C．could | D．shall |