第一个框全部直接加er
第二个框前三个直接加s,go-----goes,have----has,climb----climbs
第三个框：dance----danced,take-----took,do-----did,go----went,see---saw,fly---flew
第四个框：swim---swimming,leave---leaving,get---getting,另外几个直接加ing
reading,watches,stronger,go,bought,am,what,is riding a bike,how many,bigger一个星期前就好啦，不过谢谢你