Question

Hello. I will be very grateful if you help me with a few problems.
1)Do you think it's possible to use the present perfect continuous tense with the phrase "until now / until today", for example "Until today, this job has been giving me a lot of satisfaction"?
2)Which preposition, "at" or "in", is correct in the following context, maybe both: "The president joined thousands of students and families of martyrs in / at Damascus University"?
Thank you for all your help.

Answer 1

1. yes, that's good. The meaning is that the job had been giving you trouble for quite a while, but today it stopped!

2. I'd use "at."