American artist Jeremy Telford made a room with balloons．He got the        from Bag End in the Lord of the Rings, which is a hole in the ground where a Hobbit（霍比特人）lives in the film．

Everyone will have to ______ a test before they are admitted to the university.

—Have you ___ your father to give up smoking ? —No. I _____ .  but he wouldn’t listen .

Cultural exchange ______ better understanding between people in different countries.

South Korea returned to China the remains of the Chinese soldiers killed in the Korean War,_______ the friendly ties between the two countries