—Why do you eat so little?—I’m _______ a diet to reduce some weight.

We need to put safeguards ______ to prevent this type of accident occurring again.

The mountain scenery is typical ______ Scotland, which is bound to attract tourists from other parts of the world.

 _______ my opinion, you shouldn’t go there by yourself.

_______ the fact that he _______ speak English, he spent quite a pleasant time in London.