The boys like to listen to music when they do ______ (they) homework.
their
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me( 主格 )__________
()Where'sthebag?
()Whoseglovesarethey?____my_____.
fox ，wolf ，friends ，and ，are
_________________________________
A car travels at a rate of 50 miles per hour.How long will it take to travel 300 miles?