Betty had nothing to do last Sunday afternoon, ____________? 

This computer is old, but it is ______ to me because it was a present from my dearest grandpa.

— Anna’s father seldom has breakfast at home,          ?—          . He has it on his way to work．

People who eat a balanced diet should be healthier than those who only eat biscuits and hamburgers,              ______?

--There is no juice in the fridge, _____? --No, we’d better go and buy some.