You’d better book the tickets as early aspossible, ________ they will be sold out soon.

I watched an interesting movie yesterday.— ________.

His brother John began to study French lastyear. And now he is good at it. He is so talented.—_______ He always learns things quickly.

–What is the man, actually?– I don’t know for sure. But I think he can be _____ but a policeman.

Every few years, the coal workers ___________ their lungs X-rayed to ensure their health