It is known to us __________ it was not until 1938 ________ the first colour TV programme began to be broadcast in the world

Hello, is Mr Smith in—Sorry, there is no such person _______ you referred to in my office.

It is the theory ____the earth turns around the sun____ changes the world. [ ]

he development of science, more new technologyto the field of IT.

— We are not allowed to bring any snacks to the sports meeting. —_____________.