The underlined part in the word “ plays ”is pronounced as ______.

Electronic devices such as iPods and headphones can do great harm to our hearing if _______ improperly.

It was only after he had read the papers ________ Mr. Gross realized the task before him was extremely difficult to complete.

We tried to stop the flames from spreading,but we knew it was ____.

He made a mistake，but he corrected the situation it went worse