(2011·山东)He had his camera ready ________ he saw something that would make a good picture.

A．even if  B．if only  C．in case  D．so that

I travel to the Binhai New Area by light railway every day，________ do many businessmen who live in downtown Tianjin.

A．as  B．which  C．when  D．though

Jack wasn't saying anything，but the teacher smiled at him ________ he had done something very clever.(2011·湖南)

A．as if  B．in case  C．while  D．thought

—Did you return Fred's call?

—I didn't need to ________ I'll see him tomorrow.

A．though  B．unless  C．when  D．because

Leave your key with your neighbor ________ you lock yourself out one day.(2012·辽宁)

A．as long as  B．even though

C．in case  D．as if

A number of high buildings have arisen ________ there was nothing a year ago but ruins.(2012·山东)

A．when  B．where  C．before  D．until

—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

—Have you got any idea for the summer vacation?

—I don't mind where we go ________ there's sun，sea and beach.

A．as if  B．as long as

C．now that  D．in order that

(2012·福建，30)It is hard for the Greek government to get over the present difficulties ________ it gets more financial support from the European Union.

A．if  B．unless  C．because  D．since

You can borrow my car ________ you promise not to drive too fast.(2012·江西，31)

A．unless  B．even if

C．in case  D．as long as