A、BECAusE hE is AirsiCk.
B、BECAusE hE wAnts to hAvE A gooD slEEp on thE plAnE.
C．BECAusE hE DoEsn’t likE thE winDow sEAt.
D．BECAusE hE wAnts A morE ComFortABlE sEAt For his wiFE.