Выберите времена глагола, соблюдая правила страдательного глагола: 86. These documents … now.
a) are signed b) are signing c) are being signed
87. This contract … by Mr Brown yesterday at 10 a.m.
a) was being signed b) was signing c) was signed
88. The terms of payment … discussed for two hours.
a) are being b) have been c) are
89. These documents … sent by fax.
a) are not b) are not being c) have not been
90. The interview … finished by 3 p.m