I can’t understand you. Can you speak more_______?
If I ______ free tomorrow, we ________to Beijing Zoo.
They will build nature reserves _____ protecting ______ birds.
The sentence structure of “We call them mooncakes.” is _____.
— Don’t play football in the street, Tom._________________.
In the past I often wrote _____ my parents about my study at school, but now I e-mail them ____ rita@sunshinetown.com.cn or call them ______ 5551 6789 .