--- I have _____________, I’m afraid I have to see the doctor. --- I ‘m sorry to hear that. 

Dogs have a very good ______ of smell and are often used to search for survivors in the earthquake.　　　　　　　　　　　　　　　　　　　　　　　　　

—What would you like to say to your ________ before leaving school?—I’d like to say “Thank you very much! I’ve learnt a lot from you in the past three years.”

—What’s in the icebox? ---A few ____, but little ____.

They listened very carefully and heard the strange________ again.