Questions 18 and 20 are based on the following news. At the end of
the passage, you will be given 15 seconds to answer the questions. Now,
listen to the passage. The years after 1812 were relatively unproductive because ______.
A．he felt good in his romantic relationships B．he realized that his hearing was compromised C．he felt inadequate to create more musical pieces D．he was very low in spirits