In the 1890s, an American, Charles D.Seeberger, invented...

Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the blanks from 25 to 29.
In the 1890s, an American, Charles D.Seeberger, invented moving stairs to transport people. He (25) __________this invention an 'escalator', taking the name from the Latin word 'scala', (26) __________means a 'ladder'. Escalators move people up and down short (27) __________. Lifts do the same, but move only a small number of people. If an escalator breaks down, it can still be (28) __________ as ordinary stairs. An escalator can move between 8,000 and 9,600 people an hour, and it did not need a person to operate it. Towards the end of the nineteenth century, cities were becoming more crowded and the first escalators were built at railway stations and in big department (29)__________so
that people could move about more quickly.
The word or phrase which best fits the gap (27) is...
A. distances
B. directions
C. measurements
D. lengths