look at the sign,you can't take photos here.sorry——it 为什么填didn't _英语解答

look at the sign,you can't take photos here.sorry——it 为什么填didn't see 而不能填
haven't seen

人气：275 ℃　时间：2019-10-26 00:35:48

解答

过去式表示刚才没看到,haven't seen,表示到目前为止也没看到.