Sort out the characters according to their tones.

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
鳥名字分 (choose the first tone)
又合把馬 (choose the fourth tone)
牛字分把 (choose the second tone)
合鳥魚名 (choose the third tone)