when _ you_(buy) it?

when _ you_(buy) it? I_(buy) a beautiful pen.----when _ you_(buy) it? when you_ _ _3个空,you_ _两个空cross it at a zebra crossing. 你确定你喜欢它吗?根据汉语意思写中文 _ you _that you_ it? Why not buy the coat?It’s really _. Can you_(come)and_(help)_(l)with_(l)Maths _(be) careless any more or you_(make) mistakes _(not eat)snacks while you_(do)your homework 你难道不怕蛇吗? ＿ you_ _ snakes? What do you_ _(认为)_ _ _(去...的旅行) You need to brush teethv__ When _____ you ______ (buy) this computer It looks smart When this book____,nobody wanted to buy it.