It _______ law for some people to let the children who are not old enough ____ in the factories for them.

Is your new team-mate a good guy?— Yes. He is kind, skillful, hard-working and intelligent; ____, I can’t speak too highly of him.

You seem familiar with Mr. John?-Of course, we_______ together for three years in the 1990s.

What do you think of the lecture of Li Yang’s Crazy English?-I think it’s , but someone thinks it’s much too .

It is quite patient ______ him to explain everything ______ me.[ ]