Вставьте по смыслу эквиваленты have to, is to, can, must? ! 1) come at 10 am to day. the manager permitted her. 2) are you using the mobile i take it? 3) you work harder if you want to pass the exam 4) i'm sorry. i go now. i meet the manager in 10 minutes
2)can
3)must
4)have to, I'm