—____ does Jane exercise?—Four times a week.

---Why do you think he can succeed?---He believes in himself, ____ is the most important, I think.

I am afraid that Mrs. Black doesn’t believe her son is able to design such a complicated machine,       ?

. Miss. Richardson knows much about the novel. I suppose that she must have read it, _______?

─         my hat?─It’s on Tom’s chair.