英语句型问题 （改为否定句和同义句转换）

题目

英语句型问题 （改为否定句和同义句转换）
1、i have ever been to shanghai(改为否定句）
i have ______ been to shanghai
2 the environment in beijing has already changed(改为否定句）
the environment in beijing _______________________________________
3 look at the cloud .it seems that it will rain soon(同义句转换）
look at the cloud.it___________________rain soon
4 shanghai is the largest city in china（同上）
shanghai is ________ than ________________________________in china
5 my grandma hasn't taken the subway.my grandpa hasn't taken the subway,either.（同上）
my grandma hasn't taken the subway,______ _________ my grandpa
6 the population of china is 1.3billion.(同上）
__________ _________ 1.3billion people in china
7 china has sent shenzhou VII into space successfully(改成反意疑问句）
china has sent shenzhou VII into space successfully ________ _________

答案

I have never been to Shanghai.The environment in Beijing hasn't changed yet.Look at the cloud.It is going to rain soon.Shanghai is larger than any other city in China.My grandma hasn't taken the subwa...