Question

Yukti _ (be + earn) money by giving tuitions 10 years ago

Answer 1

Answer:

was earning

Explanation:

When we mean activity was performing at a specific time in the past, we use the Past Continuous/Past Progressive form of the verb.

Here, the specific time is mentioned by addressing "10 years ago", and, the sentence means when it the time was ten years previous from now, Yukti was the continuously performing an act.

Therefore, 'was+(verb+ing)" is used to carry such meaning.