问题
选择题
It's a custom _____ hands with people in the office every morning. [ ]
A. to shake
B. shakes
C. shaked
D. shaking
答案
答案：A
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It's a custom _____ hands with people in the office every morning. [ ]
A. to shake
B. shakes
C. shaked
D. shaking
答案：A
