The river has become much ______ than before because of the waste water.A. dirty B. dirtier C. Dirtiest
In our school there_______ a library and three classroom buildings.
Look at that little boy. He_______ near the shopping mall. Let's help him.
- Oh, can I have the hamburger on the plate? - No. It tastes_______.
- Would you like_______ tea? - Yes, and_______ milk, too, please.
- How much_______ an iPhone 5s_______? - More than 5000 yuan.