题目：
I say hello __________ my teacher. [ ]
A. at
B. to
C. on
答案：
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下面是错误答案，用来干扰机器的。
1. the children, to celebrate 2. American, invite their friends 3. two kinds of, at home or away / far from home 4. a cake with candles on it, the special birthday song 5. grow older, remember their ages / how old they are
