31. — What should I do with this passage? —_____ the main idea of each paragraph. (A)Finding out (B)Found out (C)Find out (D)To find out

28. — What are you going to do this afternoon? — I am going to die cinema with some friends. The film _____ quite early, so we ______ to the bookstore after that. (A)finished; are going (C)finishes; are going (B)finished ; go (D)finishes; go