... whose 13 . Ba : That's an excellent drawing, Hoa. Hoa : ________________________ A. Yes, I think so. B. It's nice of you to say so. C. Well done. D. That's a good idea. (1 4-2 1) ... celebrates C. celebrate D. is celebrated 11 . ___________________the sun was shining, it wasn't very warm. A. Because B. When C. While D. Although 12 . My father, _________________sense of ... and even to farmers ( 21) ___________________must set dates for planting and harvesting. 14 . A. on B. in C. at D. of 15 . A. travel B. fly C. trip D. A and C are right 16 . A. practice B. practiced...