问题
选择题
The celebration gathering ____ the anniversary of Macao's return to the motherland were held here
on Sunday. [ ]
A. to mark
B. marks
C. marking
D. marked
答案
答案：C
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The celebration gathering ____ the anniversary of Macao's return to the motherland were held here
on Sunday. [ ]
A. to mark
B. marks
C. marking
D. marked
答案：C