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21.01.2020 17:06 •  Английский язык

1)lymph is constantly around the body but the lymphatic system has no central pump equivalent to the heart. выберите один ответ. a. moves b. moving c. move 2)the size of the thoracic cavity is constantly with the movement of ribs and the diaphragm. выберите один ответ. a. varying b. vary 3)the walls of the blood vessels in response to a stimulus. выберите один ответ. a. is contracting or expanding b. are contracting or expanding c. contracting or expanding 4)doctor n. the patients from 10 till 12 o’clock tomorrow. выберите один ответ. a. examine b. will examine c. will be examining 5)while the doctor . . the child he noticed that his hands and feet were very cold. выберите один ответ. a. was examining b. examining c. were examining 6)octors for new ways to help patients. выберите один ответ. a. looking b. looks c. are looking 7)technology fast. выберите один ответ. a. are changing b. change c. is changing 8)scientists on a number of research projects. выберите один ответ. a. are working b. was working c. work