The traffic is becoming more and more terrible because of the______population.

Is this your sister’s key, John —No, it isn’t. ______ is in the bag.

would you like, beer or juice–______. Give me some Cola please.

Mr. White _____ at 8:30 for the meeting, but he didn’t show up.

There is still a long way to go to solve all the problems ______ conservation of natural resources.[ ]