would you like to join us.的回答,选择哪个?为什么?1.of course not2.i am busy_英语解答

would you like to join us.的回答,选择哪个?为什么?
1.of course not
2.i am busy
3.sorry,i won't
4.sure.what is it?

人气：264 ℃　时间：2019-08-19 18:34:14

解答

choose number4
because this way is polite and also right in grammer