It took him only ten minutes to work out the maths problem.(

It took him only ten minutes to work out the maths problem.( it took them three hours to work out the problem? It's difficult for him to work out this maths problem 同义句是什么 Only by this _____can you work out the maths problem The maths problem is too difficult for him to work out 复合句 The maths problem is not easy enough for him to 是work out还是w The maths problem is too difficult for him to work out.(改为复合 2.I took him an hour to work out the problem .( 同义句 ) 1.It's _for th buy to work out the Maths problem.It's too di it's ( )for the girl to work out the maths problem The maths problem is difficult,but f___we work it out. The twins fails to work out the maths problem.