—I come in?—Come in，please.A. Do B. Am C. May
想知道别人手中有多少本书你应该问 A. How many books do you have? B. How many birds can you see?
怎样询问你不认识的女孩 A. Who's that woman? B. Who's that girl?
询问别人来自哪里应该说 A. Where are you from? B. What are you from?
自我介绍说自己来自哪里应该说 A. I'm sorry. B.I'm from Dongtou.
当有外宾来你们学校时，你可以对外宾说 A. Welcome back to school. B. Welcome to our school. C. Goodbye.
I come in?
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