1. They had been preparing the medicine for 45 minutes before everything was ready. 2. Doctor had written out the recipes five minutes before I came. 3. We had been looking for a drugstore for about 20 minutes before we found it. 4. I had been reading the medical encyclopedia for a few minutes before I found the desired information. 5. My son had not been waiting even for fifteen minutes when the doctor came. 6. Doctors had worked on this issue for three years before they went on a world scientific conference.
I think the weather (will be) fine on Sunday.
Lisa has sold her car. I think she (is going to buy) a bike.
How old (will you be) in 2050?
What time (will the show begin)?
What (are you doing) tomorrow evening?
These boxes are so heavy. (Will you carry) them for me, please?
This lesson (will end not ) at 11:30 but at 11:40.
This time tomorrow we (shall be driving) to Moscow.
The students (will have written) their essays by the end of the week.
The steward says: “We (shall land) in London in about 20 minutes.”