Grammar Auction for Was/Were

(TESOL Worksheets--Was and Were)
Google: drive, docs, pub
[This is for very young students still learning the difference between "was" and "where". Divide students into groups. Give each group a sheet with the sentences on them. The groups have to bet on which sentences are correct, and which ones are not. (It's also possible to do this game as a grammar auction, where students bid on correct sentences, but I find the game usually moves quicker if students bet.) I start each team off with ten points. No team is allowed to bet more points than they have at the time. If they get the answer right, they double their bet. If they get the answer wrong, they lose their bet. The auction can be done on paper, or on the power point presentation at Google Drive (drive, slides, pub).]

Is this sentence correct?
Yes	No	How many points do you bet?	1. We were there yesterday.
Yes	No	How many points do you bet?	2. They was with us.
Yes	No	How many points do you bet?	3. Was there a dog with you?
Yes	No	How many points do you bet?	4. Were there lions in the zoo?
Yes	No	How many points do you bet?	5. Was there a cat?
Yes	No	How many points do you bet?	6. Were he at school yesterday?
Yes	No	How many points do you bet?	7. Was the doctor there?
Yes	No	How many points do you bet?	8. Were my sister home?
Yes	No	How many points do you bet?	9. Was there a mouse in the house?
Yes	No	How many points do you bet?	10. I were home alone yesterday.