21. (2011贵州省五校第四次联考) It is reported that a bus went out of __________ control on a highway ________ south of the city last night.
A. /; / B. /; the C. the; / D. the; the
22．(2011沈阳二中高三第四次阶段测试) —Where have you been recently?
—I in Beijing on business for a week last month.
A．have worked B．was working C．have been working D．worked
