1.Shakespear's plays are seen by ----people every year.

1.Shakespear's plays are seen by ____people every year.a.millions of b.milloin of c.millions d.many millions(正确答案:a.millions of 2.Harry Potter series is popular with people of all ages and about sixty ____books were sold in 200 countries.请说明为什么选此答案及其他答案为什么不对.在比较millon--millions,millon---millon of,millions of---millions,millions of----million of的区别a.million b.millions c.million of d.millions of(正确答案:a.million )