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

400.( )You can contact a ()for airline tickets.

399.( )Ittook him a full day to ()those bags.

398.( )The customs officer caught a ()dealer at the airport.

397.( )In most countries，liquor stores do not sell () to children under 18 years olD.

396.( ) Hehas finally () in the new city.

395.( )The market has many products with heavy ()

394.( )How would you like me to()you for my error.

393.( )Smiling and laughing has actually been shown to () tension and stress.

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 ()