do you know who invented tea为什么前后时态不一致

do you know who invented tea为什么前后时态不一致 Do you know ____?A.who invented tea B.who was the telephone Do you know who invented Chinese chess 1.Do you know who invented the telephone?为什么不需要the you,invented,do,basketball,who,know连词成句 who invented tea tea之前为什么不加the Who invented tea? Do you know who discovered America and who invented the comp -- do you know who invented the telephone -- no l only know 求助首字母填空一篇Do you know who invented s_________(1)?Well ,there Do you know the ____(invent) names who invented these cars英语 Who invented Chinese chess?Do you know?合并为含宾语从句的复合句