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.

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?

403.( )This airline has 150 international ()

402( )This door should only be used in an ()

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