the man speaking at the meeting is a professor___ mathematic

the man speaking at the meeting is a professor___ mathematic The woman who is speaking at the meeting once won the first who is the women that is speaking at the meeting 中that为什么不能换 The man ___at the meeting is a very famous writer. i'm not sure ______ he is speaking at the meeting the man__is spaeaking at the meeting is a famous scientist. The man about whom I talked at the meeting is from Beijing.中 Generally speaking ,the more learnd a man is,the more ——谦虚的h He________(make) a speech at the meeting tomorrow,is he be asked the man was asked to make a seech at the meeting怎么讲 改错：The tall man is practice speaking English.There is a peop the man in charge recommend that matter ------at the meeting