【C16】A．YetB．HoweverC．SoD．Moreover

【23】A．YetB．HenceC．ThusD．Besides

A．yetB．evenC．stillD．subsequently

【C5】A．andB．howeverC．soD．therefore

A．ThereforeB．HoweverC．SoD．otherwise

【C7】A．CertainlyB．HoweverC．YetD．Moreover

【C5】A．ThereforeB．HoweverC．ThenD．Moreover