Although he was _____of the existence of the danger,he still risked heading for the mysterious caveA suspected B conscious C convinced D approved 为什么填C不填B呢,能解释吗?

Although he was young,he took good care of his brother.(保持句意)Although he was young,he ____ ____ his brother very well. Joe,____ born in kentucky,lived and worked in Missouri.A was B he was C although D who he was ____,he knew a lot.A.Child although he was B.As he was a child C.Child as he was D.though h____,he knew a lot.A.Child although he was B.As he was a child C.Child as he wasD.though he was child为什么选C不选A? Although he is poor he is honest _____ ____ ____ ____ ,he is honest He saved his money ____ he was able to go abroad for his summer vacationa.so that b.because c,since d.although Francis Presto Blair.Jr.,____ born in Kentucky,lived and worked in Missouri.A was B he was C although D which was 可不可以选A看作是并列的谓语. Although/Though he was exhausted,(still) he kept on working still 为什么放在he前面~ _____the heavy traffic jam,john got to the place where the conference was held on time.in ____,he was the first one who came to the conference.第一空填though 还是although,第二空填什么? Joe,____ born in kentucky, lived and worked in Missouri.A.was B. he was C.who isD.although为什什么B,C选项不可以呢 为什么要用D呢? 26.The house remains much ____ when I first saw it although No.6 has now become No.46.A.as it was B.that it was C.as was it D.that was it27.How stupid of me!I must have been blind,____ I couldn’t see he was just a cheat.A.that B.because C.for D.but Although he is wealthy,he spends ____ on clothes.A.little B.a little为什么 ___ he was only 31,he became the richest man in the world.(although/though) Although he was ill yesterday,he went on working.(用but改写) He kept on working without rest.He was very tired.(用although连句) Although he was ill yesterday,he went on working.(用but改写) Although he was very tired,he still carried on_with usArunBrunningCranDto run Although he was rich,__ he is not happy.为什么不用连词? although he was weak,he went on with his work(用英语解释下列句子)