Wind power is an ancient source of energy ________ we may return in the near future.[ ]

By improving reading skills, you can read faster and understand more of ________you once thought impossible to understand.

Mary worked here as a ____ secretary and ended upgetting a full-time job with the company.

Give me an undisturbed hour and I ______ the work Tom has left unfinished

Our headmaster isn’t in his office. I can’t find himanywhere. Did you notice him ______ the office