Some people argue that using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.

Can you tell me ______the railway station?

Generally speaking, if ______ strictly following the instructions, the electric bike is not as dangerous as reported.

Our English teacher has a voice. Everyone in class can hear him clearly.

May I go to the cinema with Tom tomorrow, mom—Of course, if your homework _______ by then.