Question: The best mosaics are in the galleries, reached by a spiral ramp at the north end of the narthex.
The best mosaics are downstairs, not in the galleries.

Answer: no

Question: The proceeds from all auctions will be deposited in the U.S.
All of the money raised from the auctions will be deposited.

Answer: yes

Question: The location of this hotel is excellent, affording as it does great views from the front-facing rooms (don't book accommodation in the annex if possible).
The hotel provides great views from its front-facing rooms.

Answer:
yes