我的钢笔丢了 My pen is lost ; my pen has lost ; Lost my pen

我的钢笔再那里 My pen then there ; My pen and then there

我的钢笔在哪里 WHERE ARE MY PEN ; where is my pen

我的钢笔是红色的 My pen is red

它不是我的钢笔 It is not my pen

我的钢笔是黑色的 My pen is black

我看我的钢笔 I'm Look for my pen

这些是我的钢笔 These are my pen

我的钢笔在椅子下面 My pen in the chair