In fact fuels we burn and plant food we eat ________ their chemical energy in the form of heat.
We don’t doubt ________ the boy can ________ the angry teacher.
---- Did you have ________ fun at the party? ---- Yes. It’s ________ shame that you missed it.
—I think you should phone Jenny and say sorry to her. —.It was her fault.
We forgot to bring our tickets, but please let us enter, _____?
–Did a letter come for me? –Yes, ____ came for you this morning.