It was only after he had read the papers ______ Mr. Gross realized the task before him was extremely difficult to complete. (2013 .全国新课标Ⅱ)
The man in blue must be your brother, _____?
You hardly know each other, _________?
She never tells a lie, ________?
Nothing seems to please her, _________?
She has breakfast at six every day, ________?