问题
选择题
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
答案
答案：C
考查非谓语动词。seated adj.坐着的 remain seated 保持坐着 （表状态）
搜题请搜索小程序“爱下问搜题”