Answer: "It's a dog" and "Who's that?"
Explanation:
The comma is putting together and shortening 'it is' and 'who is'.
To help get a company out to the public so they can make more money off popularity.<span />
Answer: One of the great monuments to the Greensboro Sit-In is at the ... and the four North Carolina A&T students were comfortable in their ... The last person to approach the Greensboro Four on that first day was an ... up support to continue and expand their demonstration and as word spread it started to swell.
Explanation:
In the late afternoon of Monday, February 1, 1960, four young black men entered the F. W. Woolworth store in Greensboro, North Carolina. The weather had been warm recently but had dropped back into the mid-50s, and the four North Carolina A&T students were comfortable in their coats and ties in the cool brisk air as they stepped across the threshold of the department store. Like many times before, Joseph McNeil, Franklin McCain, David Richmond and Jibreel Khazan browsed the store’s offerings and stepped to the cashier to buy the everyday things they needed—toothpaste, a notebook, a hairbrush. Five and dime stores like Woolworth's had just about everything and everyone shopped there, so in many ways this trip was not unique. They stuffed the receipts into their jacket pockets, and with racing hearts turned to their purpose.
Your answer is, no, sound waves do not always travel in a straight line.
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