—Where’s Li Hua?—Look! He ____ tennis on the playground.
When ,____your father ____back? When he _________ back, please give me a ring.
Today ,she got up late,so ,she worried about for school .
Most boys_____ guns to dolls while most girls _____ have dolls than guns.
Put it down, Tom. You mustn’t read_____ letter.
---How many students are there in the playground? ------ .