40．-- How much do I owe you for lunch?

　　　 -- ________ ．It’s nothing．

　　　 A．Come on　　 　　 B．Go ahead　　 　　 C．With pleasure　 D．Forget it

39．It was not until she got to the classroom ________ Lily realized she had left her textbook in the dormitory．

　　　 A．that　　　 　　　　　 B．where　 　　　　　　 C．when　　 　　　　　 D．before

38．They made a great effort to prepare the exhibition, ______ to achieve a big success．

　　　 A．hoped　　 　　　　　 B．hoping 　　　　　　 C．to hope 　　　　　　　 D．hope

37．If I can help ________ , I don't like working late into the night．

　　　 A．so　　　　　 　 B．that　　　　　 　 C．it　　　　　 　　 D．them

36．________ you've got a chance to go abroad for further study, why not seize it ?

　　　 A．Now that　　 　 B．As though　　 　 C．In case　 　　　 D．Ever since

35．________ homework did I have to do that I had to stay up late．

　　　 A．So much　　　 　 B．Too much　　 　 C．Too little　　　 　 D．So little

34．Chen Fang , as well as his two colleagues, ________ for a trip to Tibet in a month．

　　　 A．goes　 　　　　　　　　 B．go　 　　　　　　　　　 C．is going　　　　 D．are going

33．I spent ________ time doing the job, but I didn’t do any better than he．

　　　 A．as twice　 　　　　　 B．twice much　 　　　 C．twice much as　 　 D．twice as much

32．This new kind of chemical will help keep the air, soil and water________ from pollution．

　　　 A．empty　　　　　　　　 B．loose　　 　　　　　　 C．free　　　　 　　　 D．short