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

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

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

411.( )I would like make a ()leasE.

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

409.( )What＇s the () rate between US dollar and Pound?

408.( )Ifyou are driving to the airport，can you give me a ()

407.( )When are the passengers required to wear a seat belt?

406.( )My mother told me thatI ()better take a train.

405.( )There are always different kinds of () fiom this tour group

404.( )What is the ()of that flight attendant?