Question

Security cameras are restricted to ________ spaces，such as hallways and exits.There will be no cameras in classrooms，locker rooms(更衣室)or bathrooms.

A．common

B．private

C．usual

D．ordinary

Answer 1

A

usual意为“通常的，惯例的”，指因重复次数多而常见；ordinary意为“普通的，平常的”，指因“不特别”，“平凡”而常见；common意为“共有的，公共的”，指因众人参与而常见；private意为“私密的”。故common最符合句意。