连词成句。 1.do, you, about, know, what, Ottawa (?) ________ 2.live, the, city, friends, in, my (.) ________ 3.has, on, leaf, flag, it, the, a (.) ________ 4.very, tall, Tower, CN, is, the (.) ________ 5.Canada, is, a, it, waterfall, famous, in (.) ________
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