Question

i called you yesterday, but you___(not, be) in.

5min内高悬赏 信不信由你，不会的别来添乱 我很着急！~答案：weren‘t为什么didn’t不可以呢

Answer 1

i called you yesterday, but you___(not, be) in.
选择weren‘t
be in 表示来的意思，相当于come in
i called you yesterday, but you__didn't come in.
如果这么填就可以了。
因为didn’t只是一个助动词，不能单独使用，得结合动词使用，而in是介词，所以不可以用didn’t
希望能帮助到您

Answer 2

I called you yesterday,but you (were not ) in

因为in他是标语来的，而且后面明确给出了be，一般就只能填be/is/are/was/were，所以不能用do。再根据它说是yesterday，而且是第二人称，所以只能用were not，也就是你说的weren't

Answer 3

用的是系表结果 weren‘t in 如果用didn’t这个助动词，后面得加动词原形
eg i didn't go to school yesterday.
weren‘t in 表示不在家的意思不 相当于come in

Answer 4

in是表语，前边得有系动词，是过去式所以用weren‘t。do不能接in。