急！高手帮忙，几个语法题

Question

1.Computers that once took up entire rooms are now _____to e put on desktops ang into watches.
A as small as B small enough C smaller than D so small
2.-Sometimes students may have ____ themselves.
-Let's see what we can do to help them.
A difficulty expressing B difficulty to express C difficulties expressing D difficulties express
3.We have a big library in our school.There are more than twice___ five years ago.
A books than B as many books as C many more books than D many books as
4.I carefully poured the liquid into the water, my classmates____anxiously beside me to see what would happen.
A stood B standing C to stand D were standing
希望能帮我解释一下，最好能保证正确率，谢谢！！！

Answer 1

1. B. small enough
Computers that once took up entire rooms are now SMALL ENOUGH to be put on desktops and into watches.
曾经占去整个房间的电脑现在小到可以放在桌上或手表里。

2. C. difficulties expressing
Sometimes students may have DIFFICULTIES EXPRESSING themselves. Let's see what we can do to help them.
有时学生也许有自我表达的困难。我们看我们能做些什么来帮助他们。

3. B. as many books as
We have a big library in our school. There are more than twice AS MANY BOOKS AS five years ago.
我们学校有一个大图书馆。里面的书比五年前多了两倍。

4. A. stood
I carefully poured the liquid into the water, my classmates STOOD anxiously beside me to see what would happen.
我仔细地将液体倒入水中, 我的同学急切地站在我旁边看什么将会发生。

Answer 2

B B B B
第一个你好像打错了吧~
第二个是have difficulty to do sth
全句的意思是有些学生要表现自己有些困难。
第三个是as as的用法
第四个是从句~因为句子的主句是I 谓语是pour 中间用逗号隔开，而一个句子只能有一个主句 所以后面的句子应该作状语成分 只能用分词

Answer 3

1.Computers that once took up entire rooms are now _____to e put on desktops ang into watches.
A as small as B small enough C smaller than D so small
B enough 修饰形容词要后置
as small as 不能接不定式
2.-Sometimes students may have ____ themselves.
-Let's see what we can do to help them.
A difficulty expressing B difficulty to express C difficulties expressing D difficulties express
A 固定句型 have trouble/ difficulty in doing sth
做某事有困难
3.We have a big library in our school.There are more than twice___ five years ago.
A books than B as many books as C many more books than D many books as
B as many/ much as 和。。。一样多
4.I carefully poured the liquid into the water, my classmates____anxiously beside me to see what would happen.
A stood B standing C to stand D were standing
B：独立主格结构本回答被提问者采纳

Answer 4

1. B 从前的电脑大得占据整个房间，现在的小得可以放在
桌上甚至手表里。这题打错了好几个字。
2 C 学生有时表达有困难。学生很多，困难不止一个。
3 B 新图书馆的书比五年前多了两倍都不止。
4 A 简单过去。

Answer 5

BABB
1.形容词+enough
2.have difficulty (in) doing sth
3.as+名词+as
4.进行式做状语