The fog was so heavy this morning that drivers could hardly _______ the things even ten meters away from them.
He was told that_____10:15 flight would take them to Shanghai in time to reach Fudan University.
I am late, ____?
We used to have a discussion, ___?
I don't think you have eaten so many crisps ,____?
A Kangaroo scarecely knew anything about it, __?