Đề 18: Đề thi toefl itp 15 câu đầu

When —in arctic regions, the Aleuts construct igloos as temporary winter shelters.

Most substances contract when they freeze so that the density of a substance’s solid is —of its liquid.

The mechanism by which brain cells store memories is —clearly understood.

Desert animals —a means of retaining moisture in such a hot, dry climate if they are to survive.

— all data into electronic pulses.

Robert S. Duncanson was considered a painter of the Hudson River school, —on scenes of America’s untamed wilderness.

— their senses, many-celled animals perceive what is happening in their environment.

In central Georgia, archaeological evidence indicates that Native Americans first inhabited the area —.

The large compound eyes of the dragonfly — to see moving objects almost eighteen feet away.

Using many symbols makes — to put a large amount of information on a single map.

From the archeologist’s perspective, understanding the past is vitally important and requires ______ of earlier cultures.

The Texas Legislature selected Vassar Miller _____ in 1982, and again in 1988.

The distinguishing feature of a fluid, in contrast to a solid, is the ease _____ .

Oxygen and nutrients reach the body’s tissues ____ from the blood through the capillary wall.

_____ important development of the Neolithic age was not in the manufacture of stone tools but in the production of food.