11. Millions of Christmas cards _________every year. A. were sent B. send C. is sending D. are sent. 12. The children used to ____a kite on the pasture. A. flying B. fly C. to fly D. flied 13. Is living in the city _________ than living in the country? A. more convenient B. as convenient C. most convenient D. so convenient 14. Mai studies Maths a little bit____________. A. bad B. badly C. good D. smartly 15. She is _______ student in my class. A. most hard-working                              B. more hard-working         C. the most hard-working                  D. as hard-working 16. Daisy is _______ social media. She spends lots of time on Facebook and Instagram. A. tired of B. bored with C. addicted to D. curious about 17. The boys help their parents __________water from the village well. A. gather B. find C. give D. collect 18. These city girls are used to _________in the field. A. work B. to work C. working D. to working 19. Life is a small town is _________than that in a big city. A. peaceful B. much peaceful C. less peaceful D. much more peaceful 20. Trang is __________most intelligent girl in my class. A. the B. a C. an D. Φ