1. 第一句不太对。只能用 have kept表示借书一段时间
2. caring
3. Have stepped
4. differently
still
about
tricks
take active part in
the most energetic
enthusiastic
(1)
have borrowed
caring
Has step
differently
(2)
still
(3)
about
tricks
(4)
participate actively
the most energetic
(5)
enthusiastic
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