It is the first time that Martin has been to the South Pole, ________?

 _____ to blame him for neglect of duty? The president of the company is his uncle. 

I suppose that there used to be a fairy in the woods, _______?

To have a dinner at a restaurant on the Eve of the Spring Festival, you need to reserve the restaurant months before, _____?

 —______ does your school have sports meeting?—Twice a year.