问题补充:
students took the high school entrance exam on time the morning of June 16th in Yancheng , though it rained heavily .
A. Thousands of ; in
B. Many thousands ; on
C. Thousands of ; on
D. Thousand of ; on
答案:
A. Thousands of ; in
B. Many thousands ; on
(答案→)C. Thousands of ; on
D. Thousand of ; on
解析:句意:虽然羊城在6月16日早上下了很大的雨,但是数以千计的学生按时参加了高中入学考试。thousand意为“一千”,当其前面有具体的数目时,不能加s;但泛指许多时,则用复数,且常和介词of连用,构成短语thousand of,意为“成千上万的、数以千计的”,排除B、D,在具体某天的早、午、晚用介词on,故选择C。