—I can hardly believe my eyes. Is that you, Lucy?—Yes. It has been almost 20 years ______ we were together.
Mary is tired of learning because she is_______ to do better than she, both at school and at home.
- How nice the fish_______! - I am glad you enjoy it. Do you know it_______ by me?
-Where is Jim? -He_______ the teachers' office.
-I can't stop smoking, doctor. -For your health, I'm afraid you_______.
Learning_______ country's language is a better way knowing of_______ culture behind it.