Television was invented in 1924.From then on,human life has

Television was invented in 1924.From then on,human life has been changed a lot.It even has been more and more popular.
According to a survey over the past 20 years,the percentage of families ① own a television ② from 22％ in 1985 to 98％ in 2005.One of the ③ for this increase is due to the fact ④ people enjoy a higher standard of living now than they ⑤ .Another reason is that televisions ⑥ have become more widely available,which makes ⑦ far easier to buy one.This increase has also led ⑧ a cut in the price.So it will probably be that in the future every home ⑨ at least one television set,and perhaps even ⑩ .
1.A.who B.whom C.which D.whose
2.A.raise B.has risen C.had risen D.will raise
3. A.factor B.factors C.reason D. reasons
4. A.which B.that C.what D. whose
5. A.used to B.were used to C.are used to D.use to
6. A.them B.themselves C.it D.itself
7. A.it B.them C.her D.his
8. A.of B.up C.to D.on
9. A.has B.have C.will have D.had
10. A.many B.more C.many D.few
完形填空，最好带些解析。