问题
选择题
---- Each year __________ fishes are killed by the polluted water and many people are made sick by the polluted air .
----So we should do something to stop it .
A．millions of
B．million of
C．two millions of
D．two millions
答案
答案：A
题目分析：英语中数词表示概数时，后面加s，和介词of搭配使用。用原形时表示具体数字和数词搭配使用。句意：每年有无数的鱼被污染的水杀死，许多人被污染的空气致病。结合语境可知本句中表示概数，故选A。