以下单词中“gh"的发音不同于其他的是:
Lily isn’t here. When _________ she ___________.
Soon she __________ swim a quarter of a mile.
The little girl painted one side of the paper green but _________ side black.
There are _________ students in the classroom. Can you tell me where they are?
Tom’s mother was ill___ hospital so he was ____ hospital to look after her.