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2．We ______ Xiao Li since she was a little girl．（　　）

A．

know

B．

had known

C．

have known

D．

knew

分析自從小麗是個小女孩的時候我們就認識她了．

解答答案：C．結合since she was a little girl可知動作發生在過去，對現在造成一定的影響，故用現在完成時have/has+過去分詞，主語we，故have，故答案是C．

點評現在完成時有兩種用法1．過去發生的某一動作對現在造成的影響或結果或到現在為止已經發生或完成的動作．2．表示過去發生的、持續到現在的動作或狀態．

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