答对了,让我明白了奖20分

答对了,让我明白了奖20分
_____________has been done very much.
A.Few B.Nothings C.Both D.All
Put it down,Jenny!Your mustn't read__________letter.(顺便问一下,为什么是Your,不是you)A.any other one's B.anyone's C.anybody's D.anyone else's
___________ friends Betty had made in New York were all invited to her birthday party.
A.Few of B.Few C.The few D.A few
A bullet hit the soldier and he was wounded in____________leg.
A.a B.one C.the D.his
One way to understand thousands of new words is to gain _____________________good knowledge of basic word formation.
A./ B.the C.a D.one
__________ of some trees is harder than that of others.
A.The wood B.Wood C.The woods D.Woods
Everybody thinks ______________computer is ___________remarkable invention.
A.the,/ B.the,a C./,a D./,the
其实第一题选a,但我部知道为什么