Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word(s) for each of the following blanks.
The Great Wall (16)_______ for 5,000 kilometers across China from the East coast to the Gobi Desert. This biggest of all building projects was begun 2,000 years ago during Qin Dynasty. (17)_______built walls were all joined up to form one huge line, supposedly to (18)_______any invading nomads. The project used thousands of workers, many of (19)_______ were prisoners. (20)_______180 million cubic meters of earth were used to form the wall’s core.
The wall was not particularly successful as a deterrent to invaders. However, it was very useful as a kind of ancient, elevated motorway. Men and equipment could be (21)_______ moved along the wall, through the previously inhospitable, mountainous land.
Also, a very useful communication system was developed between the different sections of the wall. Smoke signals were used (22)_______messages quickly anywhere along the wall’s length.
Now, the Great Wall is China’s most popular (23)_______. It has suffered some decay and destruction over the centuries. Parts have been worn away by the wind and weather. Other sections have been destroyed by local peasants who carried off the materials to make their own homes. However, the wall is still a (n) (24)_______ sight, and a lasting monument to the (25)______Chinese civilization that created it.
Trả lời câu hỏi dưới đây:
___________(20)
A. hay là vậy
B. một chút
C. khoảng
D. xấp xỉ
(20)_______180 million cubic meters of earth were used to form the wall’s core.
[ Khoảng 180 triệu mét vuông đất được dùng để xây lõi của bức tường.]