(5)in to of by
SAN FRANCISCO

Tourists to San Francisco are rarely disappointed (1) _________the famous range of cultural and artistic attractions the city has to offer. But San Francisco is more famous (2) _________being on the San Andreas fault, a notorious source of earthquakes. Over seven hundred people died in San Francisco in the great earthquake of 1906, and more than 70 perished in another large quake in 1989. It’s hard (3) _________imagine why anyone would want to live in such a dangerous area, but millions of people choose to do so. They are all familiar (4) _________the faultline, and are aware (5) _________the potential danger if there’s another powerful quake. Yet nothing, it seems, will prevent people (6) _________building in San Francisco. A quick glance (7) _________a photo of the city shows a large number of modern skyscrapers, many of them completely covered (8) _________ glass.

Seismologists are constantly warning residents (9) _________the possibility of ‘the next big quake.’ They expect it (10) _________happen sooner rather than later. But San Franciscans are not short (11) _________courage. Except (12) _________making doubly sure that their buildings are built to the highest safety standards, they carry on with their daily lives as if nothing could ever disrupt them.
(5)
A. in
B. to
C. of
D. by

Đáp án C

Be aware of something: biết về điều gì