请帮忙解答以下7道英语单选题,

请帮忙解答以下7道英语单选题,
1.The______inhabitants of the country are blackpeople.
A.origin B.original C.originating D.originated
2.______television has both advantages anddisadvantages is clear.
A.What B.If C.That D.Which
3.It was a bitter______of wills.
A.defeat B.struggle C.war D.contest
4.Lost youth can not be made______.
A.down on B.up for C.up of D.on to
5.The book______computers.
A.have to dowith B.has to do with C.have do with D.has do with
6.The greatest challenge______eduation is likely tocome from our new opportunitues for diversity.
A.off B.to C.up D.over
7.Only can a(n)______worker deal with the situation.
a.experienced B.experimented C.influenced D.high