【C12】A．stillB．althoughC．howeverD．but

【C12】A．BesidesB．NeverthelessC．HoweverD．Yet

【C6】A．stillB．evenC．yetD．too

A．StillB．AlsoC．CertainlyD．Fundamentally

A．SinceB．AlthoughC．HoweverD．Only if

【C2】A．thereforeB．thoughC．howeverD．but

【C6】A．stillB．continueC．keepD．remain