Question

In 1776, the American colonists declared independence from colonial rule and _______ a war for their political sovereignty. [l.8.1.d] A. began B. begun C. begin D. begins

Answer 1

The correct answer is a. began.

Began is the simple past form of "begin". Begun would be past perfect (if the war was still ongoing) and the other two would be present tense (plural and singular) - but the war happened in the past, so we can't use it.