问题
选择题
It's necessary ________ us _______ read English every day. [ ]
A. of, to
B. for, to
C. for, for
D. to, to
答案
答案：B
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It's necessary ________ us _______ read English every day. [ ]
A. of, to
B. for, to
C. for, for
D. to, to
答案：B