Exercise: Write, was or was in every empty space! 1. He's in the library this morning. 2.1 all night last night. 3. A boy at school yesterday. hot yesterday. fell ill two days ago. 4. The Sun 5. Mr. Smith 6. The Weather 7. The Kids 8. The boys at the meeting last night. 9. It's 10. Last night in the city center. good last week. here yesterday. very warm yesterday.