I think the man over there must be Bob.— It _______ be him. He has gone to England.

By the time I was five, I learning English.

The boy is ________for his age. —Yes, I was much _______when I was his age.

A number of tourists _________ Yangzhou many times because it is such a beautiful city.

What do you think of him?— I hate people ____ talk much but do little.