It _____ quite a few years _____ the accused was declared innocent and set free.

here has been a great increase in retail sales , ____ ﹖

_____ their real economic situations, they got some relief fund from the government.

When do you think ______ start the new attack?

No matter how frequently _____ the works of Beethoven always attract a large number of people.

We hadn't met for 20 years, but I recognized her_____ I saw her.

Part of the work is to be finished today and ______ by this weekend.

________evidence that language acquiring ability must be stimulated.

The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.

The great use of school education is not so much to teach you things _____ to teach you the art of learning.