Gửi bạn đáp án: 

I, Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Most of us think that great ideas were the result of genius thinking. However, many of the greatest discoveries and I (17) inventions  in history began with very simple beginnings. (18) In the 18th century, James Watt was boiling water at home. As the wate began to boil, he suddenly noticed that the steam was pushing the lid of the kettle. 
From this, he created the steam engine.
In ancient Greece time, Archimedes stepped into a bath tub and felt that water was being pushed out when he stepped in. This is how he came up with the idea of how to find the weight of gold.
In the 17th century, Isaac Newton was sitting under a tree when an apple fell (19) and hit him on the head. This is when he realized the pulling force of the earth the gravity.
There are many other examples of how great ideas began with simple beginnings. What one needs to (20) become an inventor are careful observation and a lot of hard work.

đáp án ngắn gọn:

17.   A. invention        B. inventors       C. inventor      D. inventions
18.   A. On                  B. In                   C. Of                D. At

19.   A. but                  B. so                  C. and              D. because
20.   A. become           B. have              C. work            D. live

~~~~ Chúc bạn học tốt ~~~~

17,D vì cần danh từ số nhiều

18,B vì trước ngày tháng

19,C

20,A