My father had given me a book and I lost it.请问哪里错了?

你前段 "My father had given me a book" 和后面的 "and I lost it" 不对称。前段你用了"Had given" 那你在后段就要用上 "Had lost"如果你前段没有用had given,然而用了 "My father GAVE me a book" 那么后段就是对的了。英文要前后对称。你在前面用的那个方法说某样东西,在同一个句子和段里头,必须也跟着用同样的语法方式。