Identify the one underlined word or phrase. A, B, C or D - that must be changed for the sentence to be correct.

Most of the trees in our garden are less than 10 years old but ones are much older than that

Choose A, B, C, or D that best completes each sentence.

Question: Hoi An Ancient Town is preserved in a remarkably ______ state

Choose A, B, C, or D that best completes each sentence.

Question: Son Doong Cave is the largest cave in the world ______  in Phong Nha - Ke Bang National Park

Choose A, B, C, or D that best completes each sentence.

Question: The Citadel of the Ho Dynasty is the only stone citadel in Southeast Asia _______ of large limestone blocks

Choose A, B, C, or D that best completes each sentence.

Question: Cat Ba is also rich of cultural fesstivals and traditions that are highly potential for_____and development.

Choose A, B, C, or D that best completes each sentence.

Question: Although some of the structures are now _____, most of the significant existing monuments have been partially restored.

Choose A, B, C, or D that best completes each sentence.

Question: The ______ items in Con Moong Cave are now kept in Thanh Hoa Museum for preservation and displaying work

Choose A, B, C, or D that best completes each sentence.

Question: Most houses in Hoi An are of _______ architecture dating from the 17th to the 19th century.