请从所给的十组对话中选择恰当的一组，并将其字母代号填在每小题相应情景图画下面的括号内。
--- _______ is the Changjiang River? --- It’s more than six thousand kilometers long .
I’m going to _______ some books .
--- _______ is the moon ?--- It’s millions of years old.
This book is different ___ that book.
They _____ in a Chinese restaurant last Saturday.
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