Sydney Tower is ____________ in Sydney, Australia.

A．the busiest street

B．the biggest station

C．the most beautiful park

D．the highest point

Sydney Tower opens at ____________.

A．8:00 am

B．9:00 am

C．10:30 pm

D．11:30 pm

If an adult with two children goes to visit Sydney Tower, he has to pay ___________.

A．$60

B．$90

C．$120

D．$150