Could you tell the differences _____ these two words? — OK, let me have a try. [ ]

Look! That man looks like Mr Green.—It can’t be him. He _________ to America.

The famous author often tells stories to the sick child tohim .

There is ____ time. You don’t need to hurry.—But I want to see her as early as possible.

Peter, let’s check what we still have left.—Well, _____ is no use evaluating the total loss before the typhoon leaves.