Read the following passage and choose the best answer A, B, C or D to fill the gaps.
Ha Long-Bay of the Descending Dragon-is __(11)__ with both Vietnamese and international tourists. One of the __(12)__ of Ha Long is the Bay’s calm water with limestone mountains. The Bay’s water is clear during the spring and early summer. Upon arriving in Ha Long City, visitors can go along Chay Beach. From the beach, they can hire a __(13)__ and go out to the Bay. It is here that visitors can find some of Southeast Asia’s most __(14)__ sites. Dau Go Cave is one of the most beautiful __(15)__ at Ha Long. It was the cave in which General Tran Hung Dao hid wooden stakes to beat the Mongols in Bach Dang River in 1288.
(11)....................
