问题
选择题
Friends and relatives of the young couple have come to congratulate them _______ the arrival of the new baby.
A．in
B．on
C．of
D．with
答案
答案：B
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Friends and relatives of the young couple have come to congratulate them _______ the arrival of the new baby.
A．in
B．on
C．of
D．with
答案：B