Answer:
It was in the late 1960's.
Explanation:
It was tranferred through mosquitos (like malaria) and was in the United States.
The sugar plantations had a 25-hour cycle
Conflicts arose between China and England over opium trade.
Answer: D - Its
Explanation: The sentence says "review it's policy." However, "it's" with and apostrophe always means its a contraction (it is) so this sentence is not grammatically correct. Replacing "it's" with "its" (the possessive form meaning "it" owns the "policy") would correct the error.
