I’m certain he wasn’t in the classroom.I saw him in the libr

I’m certain he wasn’t in the classroom.I saw him in the libr He can't be in the classroom,I saw him go home a minute ago when i saw him,he was doing his homework in the classroom 同义 He be in the classroom ,because I saw him talking with John ( ) be in the classroom because I saw him in the librar I saw him in the street是什么意思 I saw him go 什么 the classroom I felt ____when I saw him in the street He ____ not be in the room.I saw him on the playground just I saw him yesterday afternoon=I saw him in the afternoon yes I could`t ___(弄清） what the word meant,because it wasn`t in m He was working in the factory when I saw him last time.