Compléter C21U2LC 3BVersion en ligne Complete the comments. par Modern English 1 can't possibly couldn't Invariably Inevitably possibly presumably 1 . You expect people to do three or four things at the same time and do each thing properly . 2 . , I end up making mistakes when I try to do more than one thing at once . It's usually better to take your time . 3 . That's what drives me crazy - trying to have a conversation with someone and they're checking messages on their phone . , I just make an excuse and leave . 4 . I don't know about you , but I just sit and watch a TV show . I have to do other stuff at the same time . 5 . I can see you can listen to music and study - it helps you concentrate , . I mean , that kind of multitasking seems fine .