【C9】A．whenB．ifC．untilD．after

【C10】A．whileB．beforeC．untilD．after

【C9】A．WhileB．IfC．UnlessD．Meanwhile

【C12】A．whenB．thoughC．untilD．for

【C10】A．whenB．afterC．untilD．while

The couple had no sooner got to the station_____the coach left.（2009)A．whenB．asC．untilD．th

【C13】A．whenB．ifC．beforeD．since