Choose the word (a, b, c, or d) that best fits each of the blank spaces. (Question 21)___ the United States and Canada, (Question 22) ___ a popular legend about a monster. People say that it is very big and that it has a lot of hair. (Question 23) ___ name is Bigfoot, (Question 24) ____ there are big footprints in the snow. The footprints are 60cm (Question 25) ___ and 20cm wide. But (Question 26) ___ Bigfoot really exist? We don’t know! Question 21:
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