（1）I think the shop is closed. (2) No, I think the shop is open.
“在营业中”用 be open，“停止营业”理所当然地应当用 be close，因为 open 和 close 都是形容词，互相对应。我的看法对不对？
应当搞清楚, close 用作形容词时, 作“靠近的”或“亲密的”解, 而不作“关闭的”解, 因而, 它不是形容词 open 的反义词。The shop is close. 是“商店(离这儿)很近。”的意思。
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Their house is quite close; we usually walk there. 他们的房子离这儿很近,我们常常步行去那里。
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My sister and I are very close. 我和我姐是很亲密的。
用作动词的 close 作“关上”“使关上”解,这时它是动词 open 的反义词。
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The banks close at 4:30 p.m. 银行下午4点30分关门。
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What time do you close? 你们几点钟关门?
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They close the store at 5:30. 他们在 5:30 闭店。
closed 是个形容词, 可以看作是形容词 open 的反义词:
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The shops are closed on Sundays. 商店星期日都不开门。
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The museum is closed (to visitors) on Sundays. 星期日博物馆(对参观者)不开放。请改正下句中的错误：
In the past, it was open every evening, and also on Saturdays and Sundays. Now it's close at those times to save money.