----Do you know how the accident _______?
----Sorry, I don’t know.
A. come out
B. come into being
C. come about
【2014年福建省漳州市中考】They are in the same school，_________in different classes．
A．and B．or C．but
【2014年福建省莆田市中考】The telephone rang_______ Jenny was practicing the violin.
A. until B. before C. while
【2014年浙江省丽水市中考】Good friends are like stars. You don’t always see them, ______ you know they are there.
| A．as | B．but | C．for | D．then |
【2014年四川省内江市中考】Come on, Mike! You will miss the bus ______ you hurry up.
| A．unless | B．if | C．after | D．because |
【2014年四川省乐山市中考】–Mr. Smith, someone wants you on the phone.
–______nobody knows I am here.
A. So B. And C. But