Sure! Here are the rewritten sentences:

60. Please inform your tutor if you have gone off your timetable.
Let your tutor **know that you've deviated from** your timetable.

61. If it is the same to you, I'd rather get on with the project as to not fall behind.
I’d rather **get started on the project right away** so I want to get started on the project as soon as possible if you don’t mind.

62. The central office is now being run by new owners from Madrid.
Some new owners from Madrid **have taken over** the central office.

63. I have never had to put in so much extra hours in my life.
Never **have I worked** so hard in my life as I am right now.

64. If I had a better chance of a promotion, I would put up with the bad attitude of my boss with ease.
Unfortunately, I **am not able to put up** for my boss's bad attitude due to knowing I won't get promoted.

65. Only at the end of the day did I remember to inform my boss that I was quitting.
I **only remembered to tell my** boss that I was leaving at the end of the day.