------Whyareyousolate?Ihavewaitedformorethananhour.

--------_____.Igotuplateandmissedthebus.

Doyouknow________?

-Thiskindofsportsisexciting.

-Yes,butit'sdangerous.Onecan'tdoit_______heorshehasgotsometraining.

Therearefew_______inthefridge.Let’sgoandbuysomepeas，carrotsandcabbages.

-Did you hear that John lost his job?

-It_______ that he had made some serious mistakes in his work.