某课外小组准备描绘一小灯泡（2．5V 0．75 W）的伏安特性曲线，实验台上摆放有以下器材：电压表（量程 3V，内阻约 3kΩ），．电流表（量程0．6A，内阻约 0．5Ω），滑动变阻器甲和乙（其最大阻值标称值都模糊不清），干电池 2 节，单刀单掷开关，多用电表，导线若干。

  5×5=（   ）

    Miss White see some school things ____the teacher's desk. They are a pencil box, a red pencil, two black ____(pen), a blue watch and an ____ notebook. Whose are they?

    Miss White asks Tina, “Tina, is this ____pencil box?”Tina says, “Yes, it is. Thank you.” “Are____(this) your pens?” asks Miss White. “No, they ____.They're____(Lucy).” says Tina.

Miss White goes to Lucy and says, “ Are they your pens, Lucy?” Lucy says, “Yes, they are. Thank you.” “What____ the red pencil? Is it ____(you), too?” Miss White asks. “ No, it isn't.” says Lucy. “And the watch and the aren't mine, either(也).” “Oh, I can put them____the lost and found box.” says Miss White.