i'm not sure ______ he is speaking at the meeting

i'm not sure ______ he is speaking at the meeting I,M afraid he is not——at the moment,he is at a meeting.1occu I'm not sure of that ,And I think he is probably at home .此句 #[61] I feel ______ that what he said at the meeting was not --The meeting is at ______ time for me.I'm afraid I can't co Where is Jeff?——I'm not sure.M____ he is at home or he m____ 首字母填空：He is p__________ in the room,I'm not sure. I'm sure he is good at drawing.(写出同义句) I'm sure h the man speaking at the meeting is a professor___ mathematic I’m not sure about the news.It ______ or ______ not be true. I'm sure he will come tomorrow.(同义句）He is ______ ______ ____ —Do you know where my friend is?—I'm not sure.He ____ in the