【2012福建福州】1. — Our classroom____________every day.
—So it is. It's our duty to keep it clean and tidy.
A. cleans B. is cleaning C. is cleaned
【2012貴州貴陽】2. “Have you ever been to Tokyo?” “Yes, I ______ there twice. It’s a modern city.”
A. have gone B. have been C. had gone
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