21. in office, in the office
He won the second prize.
25. by day, by the day
by day 白天
by the day 按天计算
The workers are paid by the day.
26. it, one
it 同一物体
one 同类不同一
I lost my pen. I have to buy a new one.
27. none, nothing, no one
none 强调有多少
nothing, no one 强调有没有nothing 指物，
no one 指人
--- How many…/How much…?
--- None.
28. other, another
other 后接名词复数 another 后接名词单数
other students, another student
29. not a little, not a bit
not a little 非常 not a bit 一点也不
I'm not a bit tired. 我一点儿也不累。
30. many, much, a lot of
many 和可数名词连用 much 和不可数名词连用
a lot of 可数，不可数均可，但不用于否定句
I haven't many books.
in office 在职的，
in the office 在办公室里
He is in office, not out of office.
22. in charge of, in the charge of
in charge of 管理，负责照料，in the charge of 由…负责，掌管 He is in charge of the matter. The matter is in the charge of her.
23. out of question, out of the question
out of question 毫无疑问的out of the question 不可能的
24. a second, the second
a second 又一，再一，the second 第……in the office 在办公室里
He is in office, not out of office.
22. in charge of, in the charge of
in charge of 管理，负责照料，in the charge of 由…负责，掌管 He is in charge of the matter. The matter is in the charge of her.
23. out of question, out of the question
out of question 毫无疑问的out of the question 不可能的
24. a second, the second
He won the second prize.
25. by day, by the day
by day 白天
by the day 按天计算
The workers are paid by the day.
26. it, one
it 同一物体
one 同类不同一
I lost my pen. I have to buy a new one.
27. none, nothing, no one
none 强调有多少
nothing, no one 强调有没有nothing 指物，
no one 指人
--- How many…/How much…?
--- None.
28. other, another
other 后接名词复数 another 后接名词单数
other students, another student
29. not a little, not a bit
not a little 非常 not a bit 一点也不
I'm not a bit tired. 我一点儿也不累。
30. many, much, a lot of
many 和可数名词连用 much 和不可数名词连用
a lot of 可数，不可数均可，但不用于否定句
I haven't many books.
