I asked the hotel porter to wake me at 8 o'clock the following morning

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1. I asked the hotel porter to wake me at 8 o'clock the following morning.
-> "Please ............................................."
2. The garage is going to repair the car for us next week.
-> We are going to ........................
3. We couldn't drive because of the fog.
-> The fog prevented .....................
4. The water was so cold that the children could not swimin it.
-> The water was not .......................
5. He started investigating the case a week ago.
-> He has ....................