问几道大学英语语法题

Question

5，they have kept_____of our letters
a,everyone
b,no one
c,every one
d,any one.

6，in spring farmers are busy, some are ploughing, _____ seeding.
a,the others
b,some others
c,others,
d,the other

7，this is not a bad suggestion____
a,of its own
b, by itself
c, for its own
d,in itself

8,because ther was little heat in the bedroom, Evans was cold_____
a,much through the night
b,many parts of the night
c,the majority pary of he night
d,most of the night

the workers produced more steel, and all of fine quality_____
a,at it
b,at this
c,for that
d,at that

10,five apples ____enough for a breakfast
a , is
b, are

Answer 1

5.c 他们保存了我们的每一封信件。every、any比：every更强调整体性
6.c farmers只是一个大的范围，没有具体到数字，如果有具体数字比如5个，其他的就要用the others.
7.d in oneself …本身
8.d most大部分。much、many、majority用在这都容易联想到数字
9.c 表用途、目的
10. a 整体本回答被网友采纳

Answer 2

6.b 表示其他的人当中有一些
7.a. 这本身是个不错的建议
10.a 五个苹果作为一个整体，足够早餐了
哎，大学哪有老师给我讲语法啊？中学学的也都就饭吃了。有高手指点，我也想知道。