＿he was in poor health,he worked just as hard as everyone else.＿he was in poor health,he worked just as hard as everyone else.A.But B.Although C.Even if D.IfB和C为什么感觉都可以呢?怎么分although和even if?求教.谢.

＿he was in poor health,he worked just as hard as everyone else.＿he was in poor health,he worked just as hard as everyone else.A.But B.Although C.Even if D.IfB和C为什么感觉都可以呢?怎么分although和even if?求教.谢.
＿he was in poor health,he worked just as hard as everyone else.
＿he was in poor health,he worked just as hard as everyone else.A.But  B.Although  C.Even if D.IfB和C为什么感觉都可以呢?怎么分although和even if?求教.谢.

＿he was in poor health,he worked just as hard as everyone else.＿he was in poor health,he worked just as hard as everyone else.A.But B.Although C.Even if D.IfB和C为什么感觉都可以呢?怎么分although和even if?求教.谢.
although可以用在句子前面,但even不行,你所提出的句子若把逗号前后的句子调换的话可以用even:he worked just as hard as everyone else,＿he was in poor health.这样的话,选两者都行.

连词14.___he daydreamed, Peter saw figures in the sky. A. Until B1.C while连接两个句子时，其谓语动词所表达的动作是同时发生的 2.D 火车