— Would you like tea or water?— _________ is OK. I really don't mind.

－How about the pollution in the countryside?－Luckily, it’s not as serious as _______ in the big cities.

– _________ you spell it ?      – Yes, I can. P-E-N, pen.

The boys put ___________ school bags on the playground.

It’s your life, not         . Don’t always depend on me.