381.( )The () of employees in this company has doubleD.

421.( )I want to () tickets from Beijing to Hong Kong.

420.( )The weatherman(pe )ople to a heavy storm tomorrow.

419.( )The flight the ().always ()safety belt when attendants are preparing

418.Please always ___safety belt when driving.

417.( )Take a deep breath and ()yourself.I＇m sure you＇ll feel better.

416.( )The accident was caused by an error of() on the part of the pilot.

415.( )ATC stands for ()

414.( )The()of the building is on the left.

413.( )() passengers do not have to go through customs.

412.( )I would ()it if you paid in cash.