问题
选择题
As a result of destroying the forest, a large ___ of desert ____ covered the land.[ ]
A. number; has
B. quantity; has
C. number, have
D. quantity; have
答案
答案：B
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As a result of destroying the forest, a large ___ of desert ____ covered the land.[ ]
A. number; has
B. quantity; has
C. number, have
D. quantity; have
答案：B
时，
是的（）。