Complete the sentences with the correct words using the right forms. The first two or three letters of each word are given.

Write the missing letters in each gap.

Your laptop is not working. I think there's a vi[ ] on it.

There's a problem with the so[ ] on my DVD player. I don't hear anything.

When I pr[ ] the "Play" button, my PlayStation doesn't work.

I have lost my gua[ ] certificate. How can I get a new one?