Q: Is it a

a) man-made environment?
b) natural environment?

A:

a) This is a man-made environment in Shanghai Expo.

Q: Are these the ferry wharves at

a) Sydney Circular Quey?
b) Shanghai Pudong?

A:

b) These are the ferry wharves linking two vicinities of Shanghai Expo in the both sides of the Huangpu River.

Q: Is this

a) the Sydney Habour Bridge?
b) a Huangpu Rivier bridge?

A:

b) This is Lupu Bridge that links two vicinities of Shanghai Expo in the both sides of the Huangpu River.