(2013·高考天津卷)________ small，the company has about 1,000 buyers in over 30 countries.
A．As B．If
C．Although D．Once
(2013·高考北京卷)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·高考重庆卷)It’s not easy to change habits，________with awareness and selfcontrol，it is possible.
A．for B．or
C．but D．so
(2013·高考北京卷)Don’t turn off the computer before closing all programs，________you could have problems.
A．or B．and
C．but D．so
(2013·高考新课标全国卷Ⅱ)I was glad to meet Jenny again，________I didn’t want to spend all day with her.
A．but B．and
C．so D．or
(2013·高考新课标全国卷Ⅰ)There’s no way of knowing why one man makes an important discovery________another man，also intelligent，fails.
A．since B．if
C．as D．while
