21. ---Hello, Karen, come in.________. ------- Thank you.

A. All right                    B. Make yourself at home

C. That’s my home              D. It’s a great honour

22. A person should be __to his own country. He shouldn’t do anything against his country.

A. kind        B. honest      C. loyal      D. brave

23. ----I like swimming but I don’t like to swim today. ----__________

A. So do I      B. So I do      C. I do too    D. So it is with me