What is a pen used for?

What is a pen used for? what color is ()pen What is a computer used for?意思 what is a coaster used for? What is this 是This is a pen.还是.It is a pen?为什么? what is that in English?是It is a pen还是This si a pen还是That is a pen what is this?this is a pen.哪错了? and what is that in your( )( is it a pen? What is that?itis a pen改为复数形式 What is a pen pal in Chinese?用中文怎么说? What's this?——___.(①It's a pen.②This is pen.③This is an pen.④It's a pen.) A pen is used to write with为什么要加个with呢?!求答案~! what‘s your ()name?()name is Tom.A.pen pal His B.pen pal's His what color is this pen的回答可不可以是It's a red pen what is your pen colour A brush pen is made of ____and____and is used for ____.The pan is made of ___and is used for ____1.A brush pen is made of ____and____and is used for ____.2.The pan is made of ____and is used for ____.3.A stamp is made of ____and is used for ____.4.A what is this It is a pen.还是This is a pen好这个问句碰到选项,该选哪句? what is this in English?It is a pen而不是It is a pen(英语)急what is this in English?It is a pen而不是It is pen(英语)