1.It was said that the thieves had stolen __ worth of jewelr

1.It was said that the thieves had stolen __ worth of jewelry from the shop.
A.one-million-dollar B.one million dollar's C.one million dollars' D.one million dollars
2.I called at__several times this morning,but nobody answered the door.
A.Mary B.Mary's C.the Mary D.the Mary's
3.I have to go to__this afternoon.
A.the dentist's B.dentist's C.the dentist D.dentists'
2.3题为什么2选B即不用“the” 而3为什么选A即用“the”?
4.It's__good feeling for people to admire the Shanghai World Expo .
A./ B .a C.the D.an
5.Everything comes with__price; there is no such__thing as a free lunch in the world .
A.a;a B.the;/ C.the;a D.a;/
6.In__most countries,a university degree can give you__flying start in life.
A.the;a B.the;/ C./;/ D./;a