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 they ......
in the lake. (swim / not swim)