II. Fill in the blanks with the most appropriate perfect tense time expression "ever, never, just, I already, yet, for, since"
1. I haven't cleaned my room
2. They have
been to Brazil before.
3. We have known each other
twenty years.
4. Have you
seen an elephant?
5. I have
had dinner. I'm full.
6. Don't worry, the class has
begun. You don't miss much.
7. I have
been to Canada before. I wish I could go some day.
8. Have you done your homework
?