【C5】
A.whereas
B.however
C.nevertheless
D.since
请帮忙给出正确答案和分析,谢谢!
【C11】A.whereasB.whereinC.whereonD.wherefore
【C5】A.andB.howeverC.soD.therefore
【C5】A.untilB.onceC.afterD.since
【C5】A.neverB.yetC.alreadyD.since
A.whereasB.otherwiseC.althoughD.while
【C5】A.ThereforeB.HoweverC.ThenD.Moreover