Условие:

Complete the text with the appropriate forms of the verbs in the asterisks. An invention is a machine, tool, or system that someone (1) made, or designed for the first time. An invention may (2) fist the creation of something completely new or an improvement of something that someone else (3) has produced. Many important inventions (4) have come from the work of one person; others (5) are created by many people (6) working as a team. We never (7) will never know who (8) thought of many of the very early inventions, such as the wheel and the plough.

Развернуть