一、单项填空
1.(安徽省安庆市五校联盟2015届高三3月联考)—What do you do as a volunteer in Africa?
—_______! There are many poor people there, who need a lot of help.
A. Little B. Everything C. None D. Something
2.(安徽省安庆市五校联盟2015届高三3月联考)Sorry to have kept you waiting so long, but it’ll still be some time _______ Mr. Smith is available.
A. when B. before C. after D. since
