问题
选择题
In the lecture, the professor told us _______ to protect the environment.[ ]
A. how important was it
B. how important it was
C. how important
D. how important was
答案
答案：B
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In the lecture, the professor told us _______ to protect the environment.[ ]
A. how important was it
B. how important it was
C. how important
D. how important was
答案：B