the zoo is open from 8:30am to 4：00pm on weekdays and from 8:00am_英语解答

the zoo is open from 8:30am to 4：00pm on weekdays and from 8:00am to 5:00pm on weekends.为什么open
不用ing形式

人气：482 ℃　时间：2020-01-29 02:56:19

解答

be open与open的区别be OPEN表示状态,主系表结构；open是动作,动词动物园从上午8:30一直开到四点表示的是一个开门状态,不是开门的动作