_______ they are twin brothers, they don’t look like each other.
—________a volunteer is great.—I think so.Some of us want ________volunteers for the London Olympics.
While we were running on the playground, Jack suddenly stopped ________and lay on the ground,so we all stopped ________what was wrong with him.A.to run;to seeB.running;seeingC.running;to see
You had better ________because you have to drive back home.
As we all know,it's not polite to keep others ________for a long time.
When I was walking past the window, I noticed Wang Fei ________my homework.I really got ________.