21. Mary Lennon, _____ 90-year-old silent movie actress, won an award in ______ 1930s. She said she was glad to make _____ progress in acting movies.

 A. the, /, the                     B. a, the, /                    C. a, /, a                       D. an, the, /

22. --- Do you mind my closing the door? It is a bit cold in the classroom this morning.

 --- ________, in fact.

 A. Go ahead                     B. It’s up to you            C. Absolutely                D. Yes, I do.