B. ing C. ong
B. ss C. zz
B. oa C. ou 
A. live in China B. live in Sydney
A. write a letter B. write an email
A. go hiking B. go swimming
A. do homework B. do word puzzles
A. play basketball B. play baseball 
| A．do | B．does | C．doing |
| A．to | B．at | C．on |
| A．May I speak to Li Shan,please? | B．Are you Li Shan? |
| A．is | B．are | C．am |
| A．something | B．anything | C．nothing |
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