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

I’ll go on vacation abroad as soon as I __________ this task.

29. The teachers are said to have moved to that ______ building, where they can work and live better than before.

Cultural exchange ______ better understanding betweenpeople in different countries.

The weather turned out to be fine yesterday. Ithe trouble to carry my umbrella with me.