题目内容：

How many people came to Wenchuan as volunteers during the earthquake?______,but I'm not sure
A.some millions B.millions of C.some millions of D.million of

优质解答

我觉得是A,因为B C D选项后面都有of,而介词后面一般都要跟宾语,比如说millions of them,就像及物动词后面一定要跟宾语一样,如"我喜欢"i love it,不是i love
所以要么millions,要么就是A,some有大约的意思,类似于about,如i waited some 15 minutes,some hundreds of students