介绍:
Unit23
1. When we get there, he'll have gone to work.
2. By this time next week I will have been married a year.
3. I expect that he will have changed his mind by tomorrow.
4. Phone me after 8 o'clock. I'll have finished dinner by then.
5. At the end of this summer, I will have been away from home for ten years.
6. By the end of this year we shall have studied 10 units.
7. I shall have finished reading the book by the end of this week.
8. By the end of the trip, I shall have traveled more than 3,000 miles.
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