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3. Ha Long Bay is recognized ________ UNESCO as the world Heritage site.
A. for B. by C. in D. of
1. Ha Long Bay has been recognized bu UNESCO as a Word heritage site (Câu bị động)
2. The robbers have been caught (Câu bị động)
3. Mary used to slee in the same room as her parents when she was a child (Câu có cấu trúc used to; used to có nghĩa là trước đây thường xuyên làm việc gì nên câu trên ta không thêm usually)
1. HL Bay was ....recognised.... by UNESCO as a World Heritage Site (recognition)
2. There are three trains ....daily... from Ha Noi to Lao Cai (day)
3. It is a contest in which ....participant..... have to read two poems in English (participate)
4. Tim and Shannon want to visit an ....oceanograghy.... institute in VN (ocean)
5. The problem is difficult, I can't ....solve..... it (solution)
~ Study well ~ 
Viết lại câu:
1. ''I will stay with my friends tomorrow'', Phong said to me:
---> Phong told me that..............he would stay with his friends the following day.................
2. ''Do Pyramids in Egupt attract a lot of tourist every year?''
---> Nam asked Nga..............if Pyramids in Egupt attracted a lot of tourist every year......................
3. UNESCO recognized Ha Long Bay as a World Herritage site.
---> Ha Long Bay.......................was recognized as a World Herritage site by UNESCO ....................................
điền dạng đúng của v trong ngoặc
1. The children in my home village used to (go) go bare-footed, even in winter
2. I wish I (can) could learn more about other people's tradition
3. Before the 1990s, Viet Nam (have) had had an old banking system
4. It (know) was known that Ha Long Bay was recognized as a World Heritage Site by UNESCO in 1994
recognized
activities
recognized
activities