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A pilot asked all the passengers on board to remain ______ as the plane was making a 　landing．

A．to be seating         B．seating          C．seated           D．seat

A pilot asked all the passengers on board to remain ______ as the plane was making a landing．

A．to be seating           B．seating         C．seated               D．seat

A pilot asked all the passengers on board to remain ______ as the plane was making a 　landing.

A.to be seating　　 B.seating　 C.seated　　　　 D.seat

The pilot asked all the passengers on board to remain ______ as the plane was making a landing.

The pilot asked all the passengers on board to remain ______ as the plane was making a landing.

A．seat              B．seating            C．seated            D．to be seating