Question

Поставьте слова в скобках в нужную форму. Pitch is the name (give) to a black substance that can be manufactured from petroleum, coal tar or plants. It was (original) used in road (construct), boat-(build) and waterproofing roofs. It is known for its viscosity (=being semi-fluid), its (sticky) and its (elastic). In fact, pitch is the world’s (thick) known fluid. An experiment to let drops of pitch form and then fall has been going for 92 years without (interrupt).

Answer 1

Pitch is the name given to a black substance that can be manufactured from petroleum, coal tar or plants. It was originally used in road construction, boat-building and waterproofing roofs. It is known for its viscosity (being semi-fluid), its stickiness and its elasticity. In fact, pitch is the world's thickest known fluid. An experiment to let drops of pitch form and then fall has been going on for 92 years without interruption.