Answer:
1. There are many meeting rooms in the building but they are often occupied.
2. If there is a problem with the computer, please let me know.
3. Look! There is a clock on that building. It is 1:15 so we should go to the bus stop now or we will miss our bus.
4. It is common knowledge that too much alcohol can cause both mental and physical health problems.
5. There is a saying in English- 'It is no use crying over spilt milk'.
6. It is possible that we are killing the planet with pollution.
7. There are two more items that I would like to add to the meeting agenda.
8. There are several new projects that we will soon be working on.
9. Yesterday there was a big traffic jam when I was driving home. It looked like there had been an accident because ambulances and police cars kept going past.
10. It was very sunny yesterday so there were lots of people at the beach.
Adverb. It’s modifying the “worked” not the “we”
Need more details
what do you want to know
I’m gonna have to say A. Details
