Slaves could be found in all of the 13 colonics, and they were especially numerous in ___.
A. Maryland and Virginia
B. New York's Hudson River Valley
C. New Jersey and in New York's Hudson River Valley
D. Philadelphia and in New York's Hudson River Valley
查看答案
The ____(accumulate) effect is crucial to learning a foreign language.
This particular charity is responsible for organizing the ____(remove) of supplies to famine-stricken areas.
The people of Africa have successfully fought against ____(colony) rule.
The results of the experiment shook the basic ____(assume) of his theory.答案