Hearing the news about the crash of Air
问题:
Hearing the news about the crash of Air France Flight 447, he became very concerned _______ his daughter on board.
A.in
B.with
C.about
D.at
Hearing the news about the crash of Air France Flight 447, he became very concerned _______ his daughter on board.
A.in
B.with
C.about
D.at