21. In actual fact he is quite ignorant on the subject. ____ he knows about it is out of date and inaccurate.

　　[A] What little [B] So much [C] How much [D] So little

　　22. Prof. Lee’s book will show you ____ can be used in other contexts.

　　[A] that you have observed [B] that how you have observed

　　[C] how that you have observed [D] how what you have observed

　　23. I will give this dictionary to ____ wants to have it.

　　[A] whomever [B] someone [C] whoever [D] anyone

　　24. They lost their way in the forest, and ____ made matters worse was that night began to fall.

　　[A] that [B] it [C] what [D] which

　　25. Although ____ happened in that developed country sounds like science fiction, it could occur elsewhere in the world.

　　[A] which [B] what [C] how [D] it

　　26. ____ is no reason for discharging her.

　　[A] Because she was a few minutes late [B] Owing to a few minutes being late

　　[C] The fact that she was a few minutes late [D] Being a few minutes late

　　27. Concerns were raised ____ witnesses might be encouraged to exaggerate their stories in court to ensure guilty verdicts.

　　[A] what [B] when [C] which [D] that

　　28. ____our team seems to lack at the moment is the determination ____ it will win.

　　[A] Whatever; that [B] What; that

　　[C] That; whether [D] Whether; that

　　29. It’s doubtful ____ the government of that country can accept them as permanent residents.

　　[A] whether [B] that [C] how [D] what

　　30. You may rely on ____ everything will be ready by Monday.

　　[A] that [B] what [C] which [D] it that

　　31. Conversation becomes weaker in a society that spends so much time listening and being talked to ____ it has all but lost the will and the skill to speak for itself.

　　[A] as [B] which [C] that [D] what

　　32. Give me your telephone number ____ I need your help.

　　[A] whether [B] unless [C] so that [D] in case

　　33. ____ born in Chicago, the author is most famous for his stories about New York city.

　　[A] Although [B] Since [C] As [D] When

　　34. All these conditions tend to increase the probability of a child committing a criminal act, ____ a direct causal relationship has not yet been establishment.

　　[A] provided [B] since [C] although [D] supposing

　　35. We are extremely sensitive to smells, ____ we do not generally realize it.

　　[A] even if [B] if only [C] only if [D] as if

　　36. Hydrogen is the fundamental element of the universe ____ it provides the building blocks from which the other elements are produced.

　　[A] so that [B] but that [C] in that [D] provided that

　　37. The senior librarian at the circulation desk promised to get the book for me ____ she could remember who last borrowed it.

　　[A] ever since [B] much as [C] even though [D] if only

　　38. ____industrial giants like General Motors and IBM struggle to survive by reducing the number of employees, Manpower is booming.

　　[A] For [B] Because [C] As [D] Since

　　39. ____ its economy continues to recover, the US is increasingly becoming a nation of part timers and temporary workers.

　　[A] Even though [B] Now that [C] If only [D] Provided that

　　40. Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes to classroom tests.

　　[A] before [B] as [C] since [D] when

　　41. There are over 100 night schools in the city, making it possible for a professional to be re-educated no matter ____ he does.

　　[A] how [B] where [C] what [D] when

　　42. You can arrive in Beijing earlier for the meeting ____ you don’t mind taking the night train.

　　[A] provided [B] unless [C] though [D] until

　　43. The engineers are going through with their highway project, ____ the expenses have risen.

　　[A] even though [B] just because [C] now that [D] as though

　　44. It is ____ that we’ll have to be very careful.

　　[A] a so big work [B] a so big job [C] such a big job [D] such a big work

　　45. ____ it is you’ve found, you must give it back to the person it belongs to.

　　[A] That [B] Because [C] Whatever [D] However

　　46. She can hardly avoid making mistakes in her homework ____ hard she tries.

　　[A] for [B] as [C] how [D] however

　　47. ____ we have finished the course, we shall start doing more revision work.

　　[A] For now [B] Since that [C] Now that [D] By now

　　48. ____the figure may vary, analysts do agree on another matter.

　　[A] Now that [B] Although [C] Provided [D] Except that

　　49. On a raining day I was driving north through Vermont ____ I noticed a young man holding up a sign reading “Boston”.

　　[A] which [B] where [C] when [D] that

　　50. The draft bill will strictly control the amount of publicity that can be given to a case ____ a trial begins.

　　[A] since [B] if [C] before [D] as

　　51. ____they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious.

　　[A] If [B] Although [C] Whereas [D] Because

　　52. A variety of activities should be organized ____ participants can remain active as long as they want.

　　[A] if only [B] now that [C] so that [D] even if

　　53. The phenomenon provides a way for companies to remain globally competitive ____ avoiding market cycles.

　　[A] but [B] while [C] and [D] whereas