nothing about

几道英语题没弄懂
1.He insisted that he___nothing about it.
为什么填know？这句话的意思不是“坚持说“吗？应该不用虚拟语气吧？
2.Is this the museum___you visited the other day?
我以前做过一道是Is the museum (the one) you once visited?为什么这道题是填that？我觉得答案错了
3.Do you know the thief who____by the police?
为什么不能填was caught,而要填has been caught?
4.____all over the hill and around the lake are wild flowers of different kinds.
为什么填Growing不填To grow

1.Frankly speaking ,l'd rather you(say)_nothing about it last week
2.Doctor Richard ,together with his wife and there children ,(be)_to arrive in Beijing this afternoon
3.They decided not to visit the Great Wall because it was raining (heavy)_

改写句子
1.She was here an hour ago(该否定句）
2.I knew nothing about him。
3.She read the English book this morning.(改为否定句）
4.The boy often helps others.（改为否定句）
5.Tom was happy that he stopped the fire（改为否定句）
6.This book is very interesting。（改为感叹句两种）
7.the news is very usual（同上）
8.Sandy plays badminton very well。（同上）
9.Mary is very clever and happy。（同上）
10.the weather was nice yesterday.（同上）
11.My brother can run fast。（同上一种）
12.this is very important information。（同上两种）
13.Daniel and Simon are polite student。（同上）
14.the work is very easy.（同上）
15.they are nice pictures （同上）
16.look at the bright sun，Peter。（改为否定句）

英语 动词非谓语形式巩固练习
Sarah pretend to be cheerful,____nothing about the argument.
A.says B.said C.to say D.saying
这个题目中是用并列谓语动词用said呢,还使用非谓语形式用saying啊?

she knew nothing about it.这里的knew是及物还是不及物?nothing about it是全部用来补充动词的吗?

23.He pretended ___ nothing about it.
a.know
b.to know
c.knowing
选什么,怎么分析的?

Frankly speaking,i'd rather you (say)__nothing about it for the time being.
括号内怎么填虚拟语气的用法