1 . I won’t call you ________ something unexpected happens.

A．unless

B．whether

C．because

D．while

2 . ——Do you have a minute? I’ve got something to tell you.
——Ok, ______ you make it short.

A．now that

B．if only

C．so long as

D．every time

3 . Someone called me up in the middle of the night, but they hang up ________ I could answer the phone.

A．as

B．since

C．before

D．until

4 . I’d like to study law at university ___ my cousin prefers geography.

A．though

B．as

C．while

D．for

5 . — Don’t you think the new job is a real challenge for Jack?
—Well, ______ difficulties he meets, I believe he will never lose heart.

A．whenever	B．however
C．whichever	D．whatever

6 . _____opportunity has not found any sign of life, the presence of water means life is possible．

A．While	B．Because
C．When	D．Since

7 . (2013·乌鲁木齐高三第一次诊断性测验)Life is filled with things we have no control over, ________ ourselves, we can control.

A．for

B．and

C．so

D．but

8 . ________ the global economy is showing signs of recovery, many developing countries are still suffering.

A．As

B．Where

C．How

D．While

9 . John may phone tonight.I don't want to go out _______ he phone.

A．as long as	B．in order that
C．in case	D．so that