问题
选择题
If there is any change about the time of the meeting, please inform us ________.[ ]
A. at present
B. in the meanwhile
C. at times
D. in advance
答案
答案：D
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If there is any change about the time of the meeting, please inform us ________.[ ]
A. at present
B. in the meanwhile
C. at times
D. in advance
答案：D