It worries our government a lot that the air in our city is _______than it used to be.

you known each other for long—Not very long, __________ we started towork in the company

So you missed the English class thismorning—______ I arrived 20 minutes after itstarted.

Must I do my homework now, Mum —_______. You can do it tomorrow.

She _____ on this essay for twenty minutes but she has written only about a hundred words