求这几个英语单选题的答案.要有解析.
1.She's hoping her first perrormance in the US will be the first step on the road to success,then she wants to try her____in Hollywood.
A.profit B .fortune C.distinction D.wealth
2.Having finished his morning work ,the manager stood up behind his chair,______himself.
A.practising B.spreading C .stretching D.extending .
3.The gobernment ____the diplomatic note from that country for its unclear attitude to the trade between two countries.
A.denied B.suggested C.rejected.D.ignored
4.Keep in mind:your effortd will ____.Don't let one or two failures over the year get you down .
A.take off B.put off C.pay back D.pay off
5.Two pages of the original manuscript of Albert Einstein's General Theory of Relativity were____on display in the Isreal Pavilion of the World Expo in Shanghai.
A.put up B.set down C.sent up D.taken up
6.In the Gulf of Mexico the animals' prensence close to shore means their usual habitat is badly polluted ,and the crowding could _____mass die-offs as fish run out of oxygen.
A.result form B.benefit from C.devote to D.result in
7.Every child is_____,with their own needs,preferences and talents.
A.productive B.familiar C.original D.unique
8.Stressful edvironments lead to unhealthy behaviors such as poor eating habits ,which___increase the risk of heart disease.
A.by chance B.in return C.in turn D.in a row