英汉配对。
_________ is this? This is Billy. A. Where B. What C. doing
________ your friend American? No, he isn’t. A. IsB. Are C. Am
________ name is Sandy. A. She B. Her C. His
I’m ________ Canada. A. froms B. to from C. from
Where _____ she from? A. is B. am C. are
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