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  My friend Jane once found a weasel(鼬鼠) when he was very young. As she was fond of pets, she thought she should bring him up.  Of course he had to be taught: all young things have to, and this weasel knew (56)_____. The good lady first began with (57

  My friend Jane once found a weasel(鼬鼠) when he was very young. As she was fond of pets, she thought she should bring him up.  Of course he had to be taught: all young things have to, and this weasel