XI. a) Use -ly to form the new words. For example: bad плохой; badly — плохо Slow, beautiful, deep, separate. Choose the necessary word. 1. It was a (beautiful, beautifully) song. Ann sang (beau- tiful, beautifully) yesterday. 2. They were moving (slow, slow- ly) towards the hill . The boy was a (slow, slowly) runner. 3. The children all sleep in (separate, separately) beds. Please, tie up these books (separate, separately). 4. Is this river (deep, deeply)? The boy is (deep, е in maths.