All the people sing a song together at his birthday party现在时
1个回答

.All the people sing a song together at his birthday party.

改为一般疑问句:Do.All the people sing a song together at his birthday party.?

改为过去时:.All the people sang a song together at his birthday party.

用What提问 :What do.all the people do together at his birthday party.? what对事情提问

用When提问:When.do all the people sing a song together ? when对时间提问