----- Nội dung dịch tự động từ ảnh ----- 28. My sister has been living in Da Lat for 2 years, , She has never been to Than Tho Lake. C. If _Vietnamese IJSO delegation was attending 11th Olympiad in Argentina, we A. however B. although D. because 29. had chance to meet many friends all over the world and visit different beauty spots there. A. When B. Despite C. Although D. If 30. When the first Chinese restaurants opened in Greece, it was very difficult to get fresh of Chinese vegetables. A. provisions B. materials C. supplies D. ingredients 31. _different regions and religions have a variety in marital arrangements, the arranged marriage is a traditional feature of every community. A.Because B.Although C.While D.When