问题
选择题
—I’m too busy_______ to my family often.
—Why not call them instead?[ ]
A. writing
B. to write
C. written
D. write
答案
答案：B
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—I’m too busy_______ to my family often.
—Why not call them instead?[ ]
A. writing
B. to write
C. written
D. write
答案：B