A.problem solving B.group experience C.parental guidance D.individually-oriented development
A.run B.interval C.period D.time
A.shorten the duration of the illness B.the patient buy medicine over the counter C.the patient obtain cheaper prescription drugs D.prevent people from catching colds and the flu
A.its B.which C.whose D.what
A.are puzzled by the mystery of forest pollution B.feel relieved by the use of unleaded gasoline C.still consider lead pollution a problem D.lack sufficient means to combat lead pollution
