----- Nội dung ảnh -----
Read the following passage and A, B, C or D indicate the correct word for each of the following blanks. Doi Tam, a traditional craft village, in Ha Nam Province last month. The craft was first introduced to the village sometime in the 8th or 9th century. Today there are more than six hundred drum makers living in Doi Tam village. I was amazed to see big drums in front of every house in the village. People (33) __________ that it takes four workers to make a drum with a diameter of 1.5 metres. To make a drum, the craftsmen have to follow an eight stage process. Stretching the drumhead is the most challenging stage (35) __________ they have to carefully assess the sound it makes. The other steps do not require such high skills. Nowadays, Doi Tam drums are also sold to other countries such as Laos, Cambodia and the USA.