Mrs. Black doesn’t believe that her son is able to design a digital camera, ______?

As far as we know, half of Canadian teenagers do not get enough sleep on school nights, _____?

—Jack, you water the flower today, ___?
— But, dad, I watered it yesterday.

Paul’s wish is to become a pilot, ____?

—I couldn’t get through to you at home last night. You must have gone out then, ________? 
— Yes, I went to the cinema.

When the accident happened, your brother escaped being hurt, _______?

When the accident happened, your brother escaped being hurt, _______?

I don’t think a warm winter always has a negative influence on our life, _______?

Look! the ground is wet. It must have rained last night, _______?

There is little doubt in your mind that he is innocent, _______?