1. The house is heated by gas. 2.A lot of old houses in this street are being pulled down by them. 3.Books may be kept from the library for a fortnight. After that they must be returned. 4.He has been already told about this tour by someone. 5.He was expected to pass his exams well. 6.The runway in this airport has been lengthened by them. 7.The mushrooms will be thrown out if they are poisonous. 8.It cannot be done quickly. 9.I hadn't been warned of the danger before the accident happened. 10.She will be taken to hospital tonight. 11.If you are laughed at by them, don't get offended. 12.Why weren't you at the party? I wasn't invited by them. 13.The girl was angry as she hadn't been allowed to go to the cinema. 14. This mountain has ever been climbed by no one. 15.Switch on the radio. A very good concert is being broadcasted now. 16.She was seen with George last night. 17.When will he be sent for? 18.Have you been frightened by anything? 19.This fact must be paid attention to. 20.Why was he laughed at by them when he began speaking of his adventures?
да все правильно