дано уравнение колебательного движения x=0,02cospt определить амплитуду период колебаний и частоту

раскройте скобки в нужной форме.1)he was sure that she(to invite)him to her birthday party which(to take)place a week.2)when i(to look)at my friend,i(to see)that he (to smile)from ear to ear.He (to read)an interesting story.

вставьте модальные глаголы can,may,must,или need.1).....i take this book for a little while?-i am.sorry,but i........return it to the library at once.2)alec......practice this sound specially,but the other pupils.....not:they all pronounce it properly.3)they.....come at any time they like between ten and twelve in the morning,but they......not come if they don*t want to.4)......i go there right now?-yes,you.......5)......we hand in our compositions tomorrow?-no,you........not,you........hand them in after sunday/6)john really do this today?-no,he......not,he......do it tomorrow if the likes