【C15】A．whileB．afterC．beforeD．over

【C15】A．beforeB．afterC．includingD．excluding

【C15】A．AsB．AfterC．WhileD．Before

【C5】A．inB．afterC．onD．over

【C9】A．throughB．afterC．forD．over

【C15】A．AtB．AfterC．Not untilD．Before

【C8】A．laterB．afterC．agoD．before