410.( )A() of20，000 people came to the concert.

392.( )He has refused to offer us any help.Did you know about that?—Yes，but I＇d like to () him to change his minD.

391.( )There are many reasons for a flight ()

390.( )Don＇t Panic!We are trained () and we can ensure your safety.

389.( )There will be some air ()in 10minutes.Please retum to your seat and fasten the seat belt.

388.( )The captain needs to be () of this.

387.( )What is the () of your visit to his city?

386.( )There are () wine glasses in the bag so please handle it carefully.

385.( )Passengers are required to be at the airport 2hours ()departurE.

384.( )She is very ()and always cares about other people＇s feeling.

383.( )The bags are stored in the cargo ()of the aircraft.