If you want to be healthy, you’d better eat _____ too often.
— How do you study English so well?— I study ________ reading English magazines.
—Look at the sky! What is it? —Oh! _______UFO is landing on the ground.
——Could you tell me ____? ——It’s twenty minutes by underground.
——Oh, I had a terrible toothache.——You’d better see a dentist and have your bad teeth out.
——Simon has got 95 points in the math test! ——Wow!______________ he has made!