1 . Four students from a German high school choir wrote a letter to Peng Liyuan. "Singing ______ songs was the happiest part of the day when we studied at home," they said. The letter, written in Chinese, was in reply to a letter from Peng on Feb 9th to the students and teachers at    Burg Gymnasium, ______ them to contribute to promoting the ______ of China and Germany.

The students said they have ______ Peng's letter many times and are very ______ . “We feel so proud after knowing that you even ______ our video,“ they wrote in the letter, ______a video clip in which students ______ a Chinese song.

Simone Reuen, the principal of Burg Gymnasium, said in her letter to Peng that she was ______ happy that the school had received so much______ . “Your letter is a great praise, acknowledgement and ______ to not only our school but also the ______ of our school's Chinese choir；"     Reuen wrote.

Reuen said that she believed that their songs have played a ______ but very important role in the ______ and mutual （相互的）learning between people in Germany and China. She said she was ______   of the students for ______ the distances between the two peoples.

The students and teachers at the school asked the Chinese ______ in Germany to forward the _____ letters to Peng, together with works of calligraphy and other ______ made by the students.

Burg Gymnasium has been ______ Chinese language courses since 1994. In March 2014, Peng visited the school and joined a Chinese class there during Xi's state visit to Germany.