It is illegal for a public official to askpeople for money ____ favors to them.

“ If you get the highest mark in your class, I’ll give you ______ you want,” said the mother.

Must we find out the reason today? – No, you_____.

Jeniffer is worthy ________ smoking as she suffered a lot from lung problem.

______ is surprising to us is that Tom, for ______ English was once boring, can speak English fluently as though he were a native speaker.