29) A.
-> "It took some 20,000 artisans more than a decade to build the Taj Mahal complex. The white marble stone is inlaid with floral details carved from precious gems. In places, the stone is carved into delicate vined screens called pierce work so that visitors can see into the next chamber. All of the floors are inlaid with patterned stone, and incised painting in abstract designs adorns the walls."
-> Không nhắc đến "the dome roof"
30) C.
-> A. "The Taj Mahal was built in honor of the Persian princess Mumtaz Mahal
-> B. "It is an official World Heritage Site designated by UNESCO"
-> D. "The construction of the mausoleum was completed around 1648" => khoảng 16 năm
-> Không nhắc đến "the most expensive mausoleum worldwide"
31) B.
-> A. "The Taj Mahal receives visits from between four and six million tourists every year"
-> C. "It is made of white marble"
-> D. "Most visitors are from India
-> Không nhắc đến "the Taj Mahal is newly built" mà chỉ có "one of the New Seven Wonders of the World"
32) A. 
-> "its" nói về "the building and its grounds" => the Taj Mahal and its grounds
33) D.
-> supervise (v): quản lý, giám sát
move (v): di chuyển
lead (v): dẫn dắt
see (v): nhìn
manage: quản lý = supervise