21. The restlessness of animals _____ a possible occurrence of an earthquake.
A．expressed B．impressed C．indicated D．announced
22. ―Can you tell me all about the earthquake?
―Sorry, I know nothing about it _____ I read in the newspaper.
A. except B. except for C. except what D. except that
23. ―John, I know nothing about playing tennis. I wonder if you could teach me.
―_____ Just name the day.
A. I’ m glad. B. Go ahead. C. If you want it. D. With pleasure.
