40．The project is so designed that once _______ nothing can be done to change it．

　　　 A．starts　　　　　　　　 B．having started　　 C．started　　　　　 D．starting

39．______ a good result，the professor decided to do the experiment once more．

　 A．Not getting　　 　　　　　　　　　　　　　　 B．Getting not　 　　

C．Not having got　 　　　　　　　　　　　　　　 D．Having not got

38．They are _______ little children that you can’t blame them ______ much．

　　　 A．so; so　　　　　　　 B．so; too　　　　　　　 C．such; too　　　　　 D．such; such

37．---I fell off my bicycle and broke my leg yesterday．

---Is that ____ you drank too much？

　　　 A．why　　　　　　　　　 B．how　　　　　　　　　 C．because　　　　　　 D．when

36．_______ to the left , and you will find the post office．

A．Turning　　 　　　 B．Turn 　　　　　　　　 C．To turn　 　　　　　 D．Turned

35．We offered these students a summer course , aimed _____ improving their spoken English．

A．to　　 　　　　　　　 B．in　　 　　　　　　　 C．at　 　　　　　　　　 D．for　

34. He had finished his lunch _______a familiar voice came to his ears.

A .why　　　　　 B. where　　　 C. when　　　　 　　 D. while

33. _______your composition carefully, some spelling mistakes can be avoided.

A. Having checked　　　 　　　　　 B. Check

C. If you check　　　 　　　　　　　 D.　 To check

32. We went out for _______meal last night. ______restaurant we went to was excellent.

A. a; The 　　 B. the; The 　 　C. a; A　　 D. /; The　　

31.Great changes have taken place in that school. It is no longer _______it was 20 years ago, _____it was so poorly equipped.

A. what; when　　 B. that; which　 C. what; which　 D. which; that