I can’t carry your bag. It is much ____ than mine.

My ______sister who works in the bank is two years______than I.

 –You should be _______ careful when you take the chemistry exam.--I agree. In this way, I will make _______ mistakes.

To make our city greener and cleaner, we need ______ trees.

They want to make more cars with ______ workers and ______ money. I think it’s impossible.