Does he know _______?A.when open the library is B.when the librar_英语解答

Does he know _______?A.when open the library is B.when the library is open

人气：468 ℃　时间：2020-03-26 08:05:16

解答

B.be open表状态,是“开门的”意思,同样的,be closed是关门的意思,明白了?
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