It's to bad.I think ,
I think it's bad manners to run---your parents
I think it bad manners to smoke in a reading room.为什么不用it's,
I think it's bad for your health to be _____(active)
I think it a bad habit to get up late
I think it's going to rain.
it is too bad.I think (),too.
I think it is bad for us
I would like__maths,I think it's diffcult to learn
We'd better ______ sleep in the bad.I think it's not good fo
Think it over ,I think it's
"I think it would be great." "I think it's going to be great
think it hard to do 和 i think it's hard to do 有什么区别