Remember the post office and buy some stamps for me, won’t you?
– ______ a year do people in the USA celebrate Halloween?– Once a year. I would like to dress up _______ an old woman.
My classmates and I ______.
– _______ does it take you_______ to school?– About half an hour.
Let me show you _______ my school, my new friend!
―_____ Lily ________ the USA?―_______, but now she lives in China.