Was/were & can can't - ability

The baby is ill, so we can't come to the dinner tomorrow night. Sorry. 

I can't speak French, but I know how to ask for someone's name and age. 

Look, Barry. Is that our house over there? Can you see it?

Maggie, speak a little louder. We can't hear you at the back of the room.

Where's my phone? I putt it on the table and now I can't find it!

I can smell smoke. Is there a fire somewhere?

The new manager is Sophie. I can't believe that! She's terrible.

I'm busy on Saturday, Nicky, but we can go running the next day if you want.

I was in Perth last spring. 

We were at office last Saturday. 

I was at home yesterday. 

He was happy. 

Robert and Stan were Garry's friend. 

You were very busy on Friday. 

They were in front of the supermarket. 

I was in the museum. 

She was in South Africa last month. 

Jessica and Kimberly were late for school.