It has not been announced ______ the plane is to take off (飞机什么时候可以起飞)
when
举一反三
- Has it been announced _____? A: when are the planes to take off B: that are the planes to take off C: where are the planes to take off D: when the planes are to take off
- The plane will {take off} in a minute. A: 脱下 B: 移动 C: 起飞 D: 着陆
- It hasn’t been announced ______ the plane is to take off. A: where B: when C: how D: why
- The plane __________ when we got to the airport. A: had taken off B: has taken off C: will take off D: is taking off
- By the time I got to the airport, the plane( ) . A: took off B: has taken off C: had taken off D: had been taking off
内容
- 0
A new person has been appointed to __________ his work. A: take to B: take with C: take off D: take over
- 1
The plane is about ______ (take) off .
- 2
The subject of these lectures ______ by the lecture committee. A: is announces B: have been announced C: are announced D: has been announced
- 3
Weather the plane will take off ____ the weather.
- 4
The lifeboat ______in case it is necessary to take off the crew of the damaged ship. A: has been put aside B: has been put away C: has been set aside D: is standing by