21. — What is your plan for the holiday, Paul?
— I’ll go on a trip to Yunnan Province with my family.
—_____.
A. Have a nice time B. Good luck
C. Come back soon D. Congratulations
22. — Do you know our town at all?
—No, this ________ the first time I _________ here.
A. was; has come B. is; come
C. is; had come D. is; have come
