宾语从句中,是I don't know what the matter is,还是I don't know what's the matter?
问题描述:
宾语从句中,是I don't know what the matter is,还是I don't know what's the matter?
希望能说明理由,
答
应该是I don't know what the matter is
因为是从句,所以 系动词 is 要提前```
比如:
应该是 i do not know who you are .
而不是 i do not know who are you .