1) Insulin was invented by Canadian scientists. a) Past simple b) Present simple  2) Road lines are considered an important safety innovation. a) Past simple b) Present simple 3) This important invention is implanted over one million times a year. (Cardiac Pacemaker) a) Past simple b) Present simple 4) Coffee Crisp was developed by Nestlé in Canada. a) Past simple b) Present simple  5) AM radio was invented in 1906 by Reginald Fessenden. a) Past simple b) Present simple 6) The space industry was revolutionized by the development of the CANADARM. a) Past simple b) Present simple  7) The creation of SONAR is considered the most significant invention in oceanography. a) Past simple b) Present simple  8) The garbage bag is a modern-day ease we cannot live without. a) Past simple b) Present simple 

Past simple vs present simple

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?