175. There is, There are, There was или There were?

1. There is a cake in the fridge. You can eat it. 2. There was a cake in the fridge. Where is it now? 3. There were ten chairs in the classroom yesterday, and now there are eight chairs. 4. There were two bananas in my bag. Who knows where they are now? 5. There is a nice little kitten in the box. Look at it!