Although he is very clever ,but he does not work hard.句子改错 I

Although he is very clever ,but he does not work hard.句子改错 I charlie is a clever boy but he does not work hard.sam也是,怎么说 He is not clever,but he studied very hard.And f-------he pas the boy is clever ,but he doesn't work hard He is very clever and work out the question 改错 问一道题—My cousin is very clever but he doesn’t work hard at hi Although he is very old,( )he works very hard 中能不能填but 改错 Clever as she is ,but she works very hard. 改错：Although he is very busy,but he exercises half an hour ev Frank was clever,but he never liked to work hard The boy is very clever,h___ ,he doesn't work hard. Max is very clever._,he doesn't study hard. A.And B.Or C.But