Can I go to the movie, Mum?— Certainly. But you _______ be back by ten o’clock.

The university student borrowed some money _____ his friends to start his own business. [ ]

This was the best model of a radio set the factory produced in 1970.

___________? — S-O-C-C-E-R.

Each of us has to write a ________ report every two weeks．