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He had to take the medicine three times a day, so as to be _____ the pain in the leg.

After the meeting was over, the secretary ________ the new worker to the manager’s office.

Don’t mention that at the beginning of the story, or it may _____ the shocking ending.

—Oh, doctor, The wound on my leg is infected.
—You really shouldn’t have left it _______ to the sun.

A good speaker is supposed to manage to ________ the listeners what he means.

The more one is ______ the English-speaking environment, the better he or she will learn the language.

When we are getting excited ,angry or scared ,our bodies also ______many physical changes .

They became good friends during the war, and since then their lifelong friendship has _______ tests of life and death.

The two boys fought and fought until one_____________.
A. gave up          B. gave in             C. gave away       D gave off

The population of Africa is __________ so rapidly as to cause great concern of the whole world.