Don’t be angry with your kid when he makes a mistake again, will you? —No. I won’t. I know that ______of us are perfect after all.

Everyone should make a contribution the environment.

Can you see __________ bright light in the sky?–Yes, I think it’s __________ UFO.

are they? — Fifty dollars. [ ]

The schoolboy _________to the blind man on his Way home yesterday afternoon．