问题
选择题
Mr. Brown arrived at the airport at 5 'clock _______ the evening of Saturday.[ ]
A. on
B. of
C. in
D. at
答案
答案：A
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Mr. Brown arrived at the airport at 5 'clock _______ the evening of Saturday.[ ]
A. on
B. of
C. in
D. at
答案：A