A. But
B. However
C. Even
D. Though
【C9】A.HoweverB.ThereforeC.EvenD.But
A.yetB.otherwiseC.evenD.so
【C5】A.OnlyB.RarelyC.EvenD.Frequently
【C4】A.ThenB.ThusC.EvenD.Indeed
【C6】A.butB.andC.becauseD.though
【C8】A.lessB.muchC.evenD.more