Scientists from different countries are trying to_____ a good way to solve the energy problem.

Will you read me a story, Mummy? — OK. You_______have one if you go to bed as soon as possible.

He was asked to leave the company; ________,he was fired[ ]

It’s ______ that you are tired. You should have a rest.— Thanks, maybe you are right. [ ]

It is not ______you have said but what you have done ______made us very disappointed.