They go to school by underground里的by underground 划线,怎么提问

They go to school by underground里的by underground 划线,怎么提问 they usually go to school by underground的同义句 Liu wei usually goes to school by underground.(就划线部分提问,划线部分为 We’ll go to the theatre by underground.(对by underground提问)_ I go to school by underground =I take underground to go to s Do you often go to school by underground? he would like to go to work (by underground.)对打括号的提问 she has Simon goes to work by underground.针对划线部分提问.划线部分：by undergrou My father went to work by underground last week .(划线部分提问） by by underground /take an underground/take the underground to May brother and I ------go to school by underground.A Neithe by,to,i,every,school,go,underground,day （连词成句）