【C12】A．AsB．As ifC．ThoughD．Unless

【B3】A．IfB．AsC．ThoughD．Unless

【C12】A．Such asB．For instanceC．As a resultD．In the end

【C6】A．UnlessB．IfC．ThoughD．As

【C5】A．becauseB．ifC．thoughD．when

【C9】A．becauseB．ifC．thoughD．when

_________(59)A.unless B.ifC.as D.since