Modal auxiliaries Simple Past

Put into the Simple Past.

1. Can you repair my computer, Dad? (Simple Present)
1. repair my computer, Dad? (Simple Past)
2. We must go through passport control. (Simple Present)
2. We go through passport control. (Simple Past)
3. The officers needn't check everybody´s passports. (Simple Present)
3. The officers check everybody´s passports. (Simple Past)
4. Lucy may not water this plant. (Simple Present)
4. Lucy water this plant. (Simple Past)
5. But she may water the yellow one. (Simple Present)
5. But she water the yellow one. (Simple Past)
6. Ben was able to watch the news on TV. (Simple Present)
6. Ben watch the news on TV. (Simple Past)
7. The men had to stop the fire. (Simple Present)
7. The men stop the fire. (Simple Past)
8. But they weren´t able to do it. (Simple Present)
8. But they do it. (Simple Past)
9. The pupils had to listen to the teacher. (Simple Present)
9. The pupils listen to the teacher. (Simple Past)
10. But they didn´t have to write everything down. (Simple Present)
10. But they write everything down. (Simple Past)