问题
选择题
I'm used to ________ him emails instead of ________ him letters. [ ]
A. send; write
B. send; writing
C. sending; writing
D. sending; were
答案
答案：C
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I'm used to ________ him emails instead of ________ him letters. [ ]
A. send; write
B. send; writing
C. sending; writing
D. sending; were
答案：C