Am irregular verb means that the different forms of the verb will differ and will not follow a regular pattern,
The pattern here should be:
I VERB, I VERB-ed, I will VERB
the first three options follow this pattern, so they are regular,
the correct answer is D. it is irregular: the past tense form is irregular.
It was "Mitchell Palmer" who was the attorney general under President Wilson who led a witch-hunt to round up communists in the 1920s, since these were known as the "Palmer Raids".
It doubled the size of the US
The US had to pay 15 million
Farming was improved
Answer: Montgomery Movement
Explanation: The "Montgomery Movement" led to the integration of the city's buses and launched a non-violent protest movement that spread across the United States.