Question

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Answer 1

Also called aerobic exercises. (used with a plural verb) any of various sustained exercises, as jogging, rowing, swimming, or cycling, that stimulate and strengthen the heart and lungs, thereby improving the body's utilization of oxygen.

2.

They seemed very anxious about her comfort and the woman gave the girl detailed instructions as to where to keep her things, when not to lean out of windows, and how to avoid speaking to strangers.

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Answer 2

1. aerobics is a form of exercise, designed to enhance one's cardiovascular fitness, normally performed to music.