原文章由 Mrs.Kangaroo 於 08-10-2 17:05 發表
if C6 ask his mum to join dinner at mum-in-law's place, then, C6 should ask mum-in-law to get consent first. If C6 ask his mum to have dinner at restaurant, that's fine!
You can't just walk in to mum-in-law's place and tell her that your mum also have dinner with us. That's ridiculas!