Making model planes is Mark's hobby.He has made about seven now.Yesterday,Mark had some free time and his father said,"You've just mended your big plane, haven't you? Why don't you go and try it?
參考答案:做模型飞机是马克的兴趣。他现在已经做了差不多有七架了。昨天，马克空闲的时候他爸爸问他：“你不是刚修好你的大飞机了吗，为什么不去试一下呢？”
