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!
爸 怕午包 (choose the first tone)
還真太奶 (choose the fourth tone)
還很可以 (choose the second tone)
很個還怕 (choose the third tone)