John didn’t go to bed ______he finished his homework. A.until B.after C.while
_________ he tried many times, he still didn’t move the big sofa.
—Why doesn’t Li Ming want to go swimming with us?—Because he is _________ getting into water.
The desk is ________ the way. Please carry it to an empty room.
People, especially teens, think it great fun to surf on Internet.
—Could you tell me ______ ? —Glad to help.