几道初二英语句型转换,急用.

题目

几道初二英语句型转换,急用.
1.The animals in cage can’t be happy.对in cage 提问
2.The twins tried their best to run fast.改为同义句.（The twins —— fast -they-.
3.if you don‘t study hard ,you will fall behind the others.改为同义句,（study hard ,or you’ll not ——-the others.
4.IT‘S VERY DIFFICULT FOR GIANT PANDA TO SURVIVE IN THE WILD BECAUSE OF PEOPLE.对BECAUSE OF PEOPLE提问
If we do nothing ,the giant panda will disappear in the world对will disappear in the world提问

答案

Which animals can't be happy?关于划线部分提问,看我的blog,里面有窍门ran as ...as ...could因为tried是过去时态,所以ran也是过去,could也是过去keep up如果你不努力,你就赶不上别人Why it's very difficult for g...