the boy is young ,but he can work________the difficult maths

the boy is young ,but he can work________the difficult maths The boy is very young but he can d______ himself The little boy is very young,but he can do e_____by himself Though the boy is young ,he can d_ himself now. The boy is so young that he can The boy is so young that he can't dress himself The boy is ( The maths problem is difficult,but f___we work it out. The boy is quite young.He can't go to school.(改为同义句) The boy The boy is very young. He can't go to school. The boy ___?__ The boy is 2 years old,but he can't_____. The boy is very clever .He can work out such a maths problem Waht a b____ boy he is!He can work out the difficult problem