Complete each sentence with a suitable word.

Write one word in each gap.

Gregory is easily irritated; any small problem drives him _ a _ . [ ]

We've prepared everything and hope that nothing will go _ _ _ n _ . [ ]

If you want to save time, take an _ _ _ _ n _ _ _ _ train and sleep on it. [ ]

My friends escaped the collapsed building and were s _ _ _ and sound. [ ]

Thank _ _ _ _ _ _ s _ you're here! I was afraid not to meet you. [ ]

Ann wanted to do something really adventurous and decided to visit a _ h _ _ _ park. [ ]