—I'd better ________ now.The water is boiling in the kitchen.
—Goodbye.
A.ring off B.ring up
C.hold on D.ring back
—I'd better ________ now.The water is boiling in the kitchen.
—Goodbye.
A.ring off B.ring up
C.hold on D.ring back
A 根据语境应是“挂断电话”,故答案为A。ring up意为“打电话”;hold on意为“不挂断”;ring back意为“回复电话”。