35.______ the examination, all the students are studying hard.

　　 A.Don't fail　　　 B.Not to fail　　 C.Not failing　 D.Not failed

34.His daughter _______ a scientist.

　　 A.turned　　　 B.got　　　　　 C.grew　　　 D.became

33.It's so hot. You'd better leave the door and windows ______.

　　 A.open　　　　　 B.opening　　 C.opened　　　 D.to open

32.The monkey was lucky that it just missed _____.

　　 A .catching　　 B. to be caught 　C. being caught　 D. to catch

31.---Did the door-keeper let you in?

　　 ---No. _____ I tried to telll him I was your relative, he just didn't believe me.

　　 A.If　　　　 B.However　　 C.No matter　　　 D.Whether

30.---Mary,you wash the clothes today, _____?

　　 ---But I washed them yesterday.

　　 A. do you　　　 B. will you　　　 C. didn't　 you　 D. don't you

29.Do you know the difficulty he had ______ the task?

　　 A.finishing　　 B.to finish　　 C.finished　　 D.having finished

28.---Who is in the classroom?

　　 ---______.

　　 A.None　　　　　 B.Nobody　　 C.Not one　　　 D.Nothing