—Did you return Fred’s call?—I didn’t need to ____ I’ll see him tomorrow.

She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer. 

He looked around ________ in search of something.

____________for children, the album became popular with parents __________it came out.

Mobile phone  users have developed a series of symbols, such as  and  to show ________ they feel.