The early workers built most of the subway with a technique known as cut and cover. They ________________, _______________________, and then covered it over again.
The school should ______ immeditely to the prents’ request tht studentsttend clsses in the eveThe school should ______ immeditely to the prents’ request tht studentsttend clsses in the evening.nswer B.obey C.follow D.respond