Owen wouldn't eat anything ________ he cooked it himself.

A．until B．since C．unless D．while

The medicine works more effectively ________ you drink some hot water after taking it.

A．as B．until C．although D．if

________ the police thought he was the most likely one，since they had no exact proof about it，they could not arrest him.

A．Although B．As long as

C．If only D．As soon as

John shut everybody out of the kitchen ________ he could prepare his grand surprise for the party.

A．which B．when C．so that D．as if

I would appreciate it ________ you call back this afternoon for the doctor's appointment.

A．until B．if C．when D．that

As far as I am concerned，education is about learning and the more you learn，________.

A．the more for life are you equipped

B．the more equipped for life you are

C．the more life you are equipped for

D．you are equipped the more for life

Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years ________ it has warmed in the 20,000 years since Ice Age.

A．so long as B．as much as

C．as long as D．as well as

________ that Marie was able to set up new branches elsewhere.

A．So successful her business was

B．So successful was her business

C．So her business was successful

D．So was her successful business

(2013·北京，30)I took my driving license with me on holiday，________I wanted to hire a car.　　　　　　　　　　　　　　　　　　

A．in case B．even if

C．ever since D．if only

(2013·湖南，23)You must learn to consult your feelings and your reason________you reach any decision.

A．although B．before C．because D．unless