Have you ever met a man who is always the centre of attention _____ he goes?

With the development of modern science and technology you can take your favourite radioprogrammes with you on the move and listen     you like．     

—Tom, do you know if Sam ________to my party next week?—I think she will come if she________ free.

The machine is so old ___ it can’t be used any more ___ some of its parts are changed.

 Sometimes we are asked _____ the likely result of an action will be.