Заполнить пропуски правильной формой глагола be или have. 1.their son a businessman.2.he a cassette.3.these boy students.4.much time often spend by my relatives together.5.my friends will introduced to my parents by me tomorrow.6.the museum visited by them last sunday.7.the examinations seldom passed by him well.8.the library rarely visited by the students last year.9.the cake was cooked by my mother all evening yesterday.10.the man waiting for her at the moment.11.she finished her work when we came in.12.i never been the usa.13.he already read this book.13.the letters already been written by her.14.by 9 o'clock yesterday i already sent all the letters.15.she just met her husband.16.they not translated this text yet.17.the sentences already written by them.18.we students of the college.19.there no magazines in the table.20.there an armchair in front of the tv set.