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.