Our teachers do believe that all the students in our school will do well in the coming college entrance examination, _______?

Is it a good idea          English by using it?

________ is it from here Shantou to Guangzhou? It’s about one hour’s flight.

—I telephoned him twice and I couldn’t get through to him. —The line might have been out of order,     ?

Are these your parents?    Yes,       .