单项选择题A.They find their way by mountain ranges.B.They find their way by coastlines.C.They find their way by river courses.D.They find their way by the three landmarks mentioned above.
单项选择题A.Those who watch the show five times a week learn more than the occasional viewers.B.Those who watch the show occasionally learn more than the five-time viewers.C.Those who watch the show at different hours learn more than regular viewers.D.Those who watch the show regularly learn more than the viewers watch it at different hours.