giải thik 1. I went on a trip to the countryside and had my first experience _______ farm work. a.on b. with c. for d. of 2. We usually spend our holiday in the village _______ our grandparents live. a.what b. where c. which d. when 3. I think country life is so boring and _______ because you’re not close to shops and services. a. unhealthy b.inconvenient c. comfortable d. peaceful 4. On the farm, uncle Duong showed us how to _______ cucumbers. a. plough b.produce c. pick d. put up 5. Mongolian children start to learn _______ before they can walk. a. horse riding b.riding horse c. ride horse d. horse ridden