people in the world are sending information by e-mail every day.A. Several million B. Man

问题补充：

people in the world are sending information by e-mail every day.

A. Several million

B. Many millions

C. Several millions

D. Many million

答案：

(答案→)A. Several million

B. Many millions

C. Several millions

D. Many million

解析：如果在million前有具体数字或several等词时,要用单数形式.many一般不与million等数词连用,表示数百万,英语为millions of.句意：世界上好几百万人每天都通过电子邮件发送信息。故A正确。