填空题
【参考答案】
in
— 改成at。
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单项选择题
A.a donation ceremony.B.an aid program meeting.C.an anti-government protest.D.an opposition party meeting.
A.a donation ceremony.
B.an aid program meeting.
C.an anti-government protest.
D.an opposition party meeting.
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填空题
kind — 改成variety。
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