It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.
The old man was lying on the ground, ______ dead.
--- Which newspaper shall I buy? --- ______, whatever they have in the shop.
Father ____ for London on business upon my arrival, so I didn’t see him.
I _____ in London for many years, but I’ve never regretted my final decision to move back to China.
Ladies and gentlemen, please fasten your seat belts. The plane________.