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
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
Planes take off and land there.
Planes take off and land there.
She flying on planes and travelling by train
She flying on planes and travelling by train
The planes have to undergo _____ safety checks.
The planes have to undergo _____ safety checks.
____________ the area from which planes take off at an airport.
____________ the area from which planes take off at an airport.
Two planes are flying ______ the city. A: in B: under C: above
Two planes are flying ______ the city. A: in B: under C: above
中国大学MOOC: It won’t be long before we ______ such planes ourselves.
中国大学MOOC: It won’t be long before we ______ such planes ourselves.
Before the first non-stop flight made in 1949, it______necessary for all planes to land for refueling.
Before the first non-stop flight made in 1949, it______necessary for all planes to land for refueling.
The man's family cannot come to school because no planes are flying in South Africa.
The man's family cannot come to school because no planes are flying in South Africa.
中国大学MOOC: The cost of these planes is $3 million, _________ the $ 2 million charged by their competitors.
中国大学MOOC: The cost of these planes is $3 million, _________ the $ 2 million charged by their competitors.