Where did he learn how to design buildingsA．By tak

单项选择题

Questions 17 ～ 20 are based on a talk introducing Frank Wright. You now have 20 seconds to read Questions 17 ～ 20.

Where did he learn how to design buildings

A．By taking a special course at a college.
B．By working in an architect’s office.
C．His father taught him how to do so.
D．His brother taught him how to do so.