people have kept dogs for millions of years 为什么用have kept

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/26 13:03:28

people have kept dogs for millions of years 为什么用have kept
he is so ___(careful)
the SPCA ____(office)help save animals
you must take ___(careful)of your dog
l liked small dogs better than big onces
I___small dogs___big ones
My mother has come back from the office
My mother___ ___ from the office
It took me half an hour to get home from school by bus 划线half an hour
___ ___ ___ it take you to get home from school by bus
the students enioyed themselves in the park
The students___ ___ ___ ___in the park (保持原意)
原因+理由尽快

for + 时间段,常与完成时态连用,动词也通常是延续性动词,have kept (= 已经饲养了)正好符合上述条件；
careful ; officers ; care ;
preferred ,to;
has returned;
How long did ;
had a good time
再问：能给我下这些题目所有的理由么

people have kept dogs for millions of years 为什么用have kept 组句 have ,millions ,dogs ,people ,for ,kept ,of ,years . people have kept dogd for millions of years?对for millions of 【英语】改句子 People have kept dogs for milllons of years. People＿＿dogs for millions of years.A.kept B.k you kept me waiting for two hours.为什么用 kept,而不用have kept. People have had pet dogs for thousands of years. 翻译 Because so many people about ,the dogs have to be kept in an As there are so many people about,the dogs have to be kept i 达人进（）so many people about ,the dogs have to be kept in an e ___so many people about,the dogs have to be kept in an enclo 英语翻译：For hundreds of millions of years,turtles have struggle