No sooner had Lucy arrived at the airport______the plane left.

A．Where is he from
B．My pleasure．
C．Glad to meet you．
D．Thank you．

A．It is difficult to tell what people’s words or gestures really mean.
B．Gestures can be understood by most people but words can not.
C．Words can be better understood by older people.
D．We can easily understand what people’s gestures mean.