1) In 19th-century Europe, most homes _________ (heat) by coal. a) were heated b) are heated c) were heat 2) The coal _______ (transport) by horse and cart, and it _______ (deliver) into the basement of each house. a) is transported; is delivered b) was transport; was deliver c) was transported; was delivered 3) Buckets of coal _______ (carry) upstairs to a fireplace in each room. a) were carried b) are carried c) were carryed 4) Towards the end of the 19th century, new ideas for home heating _______ (invent). a) were invented b) was invented c) were invent 5) Coal heating ________ (replace) by radiators and electric heaters. a) is replaced b) was replaced c) were replaced 6) Today, homes ________ (heat) by electricity, gas or oil. a) were heated b) are heated c) are heat 7) Warm air or water _________ (circulate) to every room in pipes. a) is circulated b) are circulated c) is circulate 8) Temperatures ________ (control) by smart technology so that heat ________ (regulate) effectively. a) controlled; regulated b) are controlled; is regulated c) are controled; is regulated

GI B1+ U5 Passive Coal

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