问题补充:
The number of students in our schoolabout 30 000 andthem study hard.
A. is;a large amount of
B. are;a number of
C. is;large amount of
D. is;a large number of
答案:
A. is;a large amount of
B. are;a number of
C. is;large amount of
(答案→)D. is;a large number of
解析:the number of+复数名词,意为“……的数目”。作主语时,谓语动词用单数;a number of+复数名词。句意为:我们学校的学生数为30 000,并且大多数人学习努力。