What are the workers talking about — They are discussing the idea the old worker ______at the meeting yesterday.

Tom likes playing _____ basketball verymuch, but he doesn’t like ______ basketball I bought him yesterday.

Must I turn off the gas after cooking— Of course. You can never be________ careful with that.

He has got ___________time to play because he often helps his mother with the housework.

Nowadays college graduates have to be highly______ to find an ideal job.