英语问题（复合句）

英语问题（复合句）
1.She is rich,and_____is better still,very beautiful.
A.what B.it C.who D.which
2.This book will show you_____can be used in other contexts.
A.how you have observed B.that you have observed
C.how what you have observed D.how that you have observed
3.They always give the availables seats to_____comes first.
A.whoever B.whom C.which D.whomever
4.The telephone,_____,was the invention of Alexander Graham Bell.
A.as is know by us B.which we know
C.as we know it D.as we know
5.______effcient an organization like this may be,it will make mistakes sooner or later,but there is little the public can do when they occur.
A.However B.How much C.Whatever D.No matter however
6._____comes back first is supposed to win the prize.
A.Those who B.Anyone C.Whoever D.Who
7.Flying demands a such greater supply of energy____other forms of transportaion.
A.most than do B.do than most C.than most do D.than do most