题目内容
When the plane hit the World Trade Center, ____ people ____ in it.
A. thousands of; worked B. thousand of; were working
C. thousands of; were working D. thousand of; worked
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题目内容
When the plane hit the World Trade Center, ____ people ____ in it.
A. thousands of; worked B. thousand of; were working
C. thousands of; were working D. thousand of; worked