【C3】A．that wheneverB．whetherC．that thoughD．since

A． AlthoughB． WhetherC． SinceD． When

【C8】A．ifB．whetherC．as toD．that

【C13】A．asB．becauseC．thoughD．that

【C3】A．asB．soC．suchD．that

【C3】A．henceB．yetC．sinceD．that

【C4】A．so thatB．in order thatC．even thoughD．now that