number/amount
【问】 The 
of hours we spent 
the work was 
(攻读硕士学位研究生入学考试英语试题，82A)
请帮助分析句中的错误。
【答】 见amount/number。
赵振才 编著.英语常见问题解答大词典.哈尔滨：黑龙江人民出版社.1998.第826页.
- alive/live
- alive/living
- all
- all
- all
- all at once
- all attention
- all but/anything but
- all but he /him
- all ears
- all in a twinkling
- all kinds
- all...not
- all...not
- all...not
- all of a sudden
- all of us didn’t
- allow/allow of
- all Paris
- all right
- all students/all of the students
- all students/all the students
- all that
- all that/what
- all the same