---Great changes in the past ten years in China.---I agree with you.
---Do you know why Anna hasn’t come to school today? ---I’m not sure. She _______ be ill.
---What should I do? Will you please give me some __________?
---Would your parents like to go to Taiwan for a vacation with you? ---They’d love to, but ______of them has enough time .
I hear the 2010 Shanghai Expo is held __________ May 1st _________ Oct. 31st.
– Do you know________? -- Only one year old.