Fill in the missing words and write negative sentences and questions

Fill in the past form. 1. Mammoths  big animals, bigger than elephants. (be) 2. Mammoths  100 years ago. (not live) 3. Mammoths  a long time ago. (live) 4. Mammoths  meat. They  grass. (not eat / eat) 5. They  two large tusks about three metres long. (have) 6. I  by credit card. I  cash. (pay / not pay) 7. He  some milk. He  any water. (drink / not drink) 8. She only  a pound. She  3 pounds. (spend / not spend) 9. I  some elephants. I  any lions. (see / not see) 10. They  in the sea, but  in the lake. (swim / not swim)