摘要： Many trees should be planted on the mountains.A. thousand B. thousand of C. thousands D. thousands of
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Many _____ trees should be planted on the mountains.
[ ]
A. thousand
B. thousand of
C. thousands
D. thousands of
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B. thousand of
C. thousands
D. thousands of
Many _____ trees should be planted on the mountains.
A. thousand B. thousand of C. thousands D. thousands of
查看习题详情和答案>>