【C7】A．althoughB．whetherC．howeverD．despite

A． AlthoughB． WhetherC． SinceD． When

【C7】A．otherwiseB．moreoverC．howeverD．whatever

【C7】A．althoughB．becauseC．only ifD．when

【C13】A．althoughB．ifC．whenD．since

【C14】A．AlthoughB．ThereforeC．HoweverD．Even so

【C5】A．AlthoughB．ThoughC．DespiteD．Whereas