1. By the time the auditors arrive next Monday, we ________ the financial records for nearly three weeks.

2. By the end of this academic year, Professor Williams ______ at this university for twenty-five years.

3. By the time the conference begins, the organising commitee _____ all the speakers and finalised the programme.

4. By midnight, the research team _______ data continuosly for twelve hours, so they will need a break.

5. By 2035, scientists _______ a reliable method of storing renewable energy on a large scale, according to the project's current targets.

6. In June, I _______ on my doctoral thesis for exactly four years, although I still won't have submitted it.

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