【2012辽宁卷】 The newcomer went to the library the other day and scarched for he could find about Mark Twain.
A. wherever B. however C. whatever D. whichever
【2012四川卷】17. Scientists study ____ human brains work to make computers.
A. when B. how C. that D. whether
【2012陕西卷】20. As many five courses are provided, and you are free to choose ______ suits you best.
A whatever B. whichever C. whenever D. wherever
【2012北京卷】24. Jerry did not regret giving the comment but felt ______ he could have expressed it differently.
A. why B. how C. that D. whether
【2012江西卷】25．It suddenly occurred to him he had left his keys in the office.
A．whether B．where C．which D．that
