1. My little sister didn’t clean (not to clean) her teeth
yesterday evening. 2. She had written (to write) a letter to herfather the day before yesterday.
3. My grandmother drinks (to drink) tea
for supper every day. 4. They will go(to
go) for a walk next Tuesday. 5. Jack didn’t do (not to do) morning exercises
last year. 6. Charlie and Roy usually read (to read) books after dinner. 7. Liz washed (to wash) her hands ten times
yesterday. 8. Children don’t help (not
to help) their mother about the house. 9. I am going to swim (to swim) in the river the day after tomorrow.
10. Her parents went (to go) shopping
yesterday.