“咚咚咚!”我们全家正在吃晚饭,不知谁来敲门。“谁啊?”爸爸开门一看,是一只小霸王龙。它告诉我们,因为外面空气中PM2.5值严重超标,它的小伙伴们都纷纷找地方避难去了,它想来我们家避几天难。我急忙把它请进来,收留了它。没过几天,小霸王龙就对我们家熟悉了。它常常趁我不注意的时候偷拿我的旱冰鞋玩,可是它的脚太大了,都把我的旱冰鞋撑坏了;它还把我们家的椅子 “Boom boom!” “Our family is eating dinner, I do not know who knocked on the door. ”Who ah? " Dad open the door to see, is a tyrannosaurus rex. It tells us that because the value of PM2.5 in the outside air seriously exceeds its standard, its small partners have to find a place to shelter, it wants to come to our family to avoid a few days difficult. I hurriedly invited it in and took it. A few days, the bully dragon familiar to our family. It often takes advantage of my rollerblades while I’m not paying attention, but its feet are so big that I have broken my roller skates; it also puts the chair in our house