If there were no examinations， we should have ______ at school.

I’m sure that if you make good use of your ____ time, your English will be improved in a short time.

—— What do you think of the concert?—— Oh, it was______success.

The authorities declared that because of the war petrol was _____ and had to be rationed (定量供应).

—Shall we go to see him right now?—I’m afraid not. This weekend may be a ____time