The plane was _______ at nine this morning ,but there was heavy rain .A .to take off B .to have taken off C .taken off D .be taken off
问题描述：
The plane was _______ at nine this morning ,but there was heavy rain .
A .to take off B .to have taken off C .taken off D .be taken off
答
D
答
B . to have taken off
飞机本应该今天早晨九点起飞,但有一场大雨(阻止了它起飞).
答
A
be to do表将要,应该
飞机应该将要在九点起飞,但有场大雨（阻止了）
答
A
be to do sth - 应该，将要