The joy of life is a deep spring. Only when digging deep ______ clear and sweet water.
It _______ law for some people to let the children who are not old enough ____ in the factories for them.
She won the first prize, though none of us had ____________ it.
15. ---Do you know the girl in red? ---She seems to ______ me at last month’s party. But I’m not sure.
14. They say that ______ Japanese language is especially difficult for ______ European.
13. ______, you must do your every best to make the party __________.