The types of jobs slaves did in the new england colonies included?

The cleaned houses, farmed plants, and took care of children.

H - The Panama Canal , The Platt Amendment

I - Before the Spanish-American War , The Monroe Doctrine, Early Part of WW1

W - War on the Central Powers , The Open Door Policy

Explanation:

Since Monroe's doctrine United States proclaimed the non-interference in affairs of other countries. Until 1917 United States didn't interfere much in conflicts of other countries.That changed with the Spanish-American War , which is a good example of American imperialism.Even when WW1 broke out Americans waited until 1917 to enter the war.