全自动腹膜透析机:The plane was noticed ________at six.

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The plane was noticed ________at six.
A.take off B.to take off
C.get off D.to get off

绝对选b

B
(乘客)被通知飞机将在六点起飞.
被动语态需加不定式
take off 起飞
get off 脱下

B
notice是感官动词,感官动词后面用动词原形或现在分词.
如:see watch 等/
不过前面是被动形式的时候,要用TO
如He was seen to cross the road.
飞机降落用短语take off

to take off
bo noticed to do 被通知

表示“这架飞机通知6点起飞”选择B项

B