英语句子划线提问This sign means 'don't eat or drink'?划线部分this

问题描述:

英语句子划线提问This sign means 'don't eat or drink'?划线部分this
This sign means 'don't eat or drink'?
划线部分是This
是where‘s sign mean还是where’s the sign mean?

Which sign means 'don't eat or drink'?