Для того чтобы правильно выполнить данное задание и вставить правильные формы глаголов в текст, взамен пропусков отмеченных буквами, требуется рассмотреть предложенные варианты ответов и выбрать наиболее подходящий для каждого случая.
Давайте разберем каждый пропуск поочередно:
A - "Wilhelm Schickard made a mechanical calculator."
- Выбор: 4) made
B - "But Babbage did not have enough money."
- Выбор: 3) enough
C - "... when his new idea was better than the previous one."
- Выбор: 2) better
D - "Nowadays there are many different computers and they are used by almost everybody."
- Выбор: 1) is used
E - "I have had it for seven years and it helps me a lot."
- Выбор: 1) have had
Таким образом, окончательное заполнение пропусков в тексте будет следующим:
"The history of a Computer
The history of a computer began many years ago. At the end of the Middle Ages, people started thinking math and engineering were important. In 1623, Wilhelm Schickard made a mechanical calculator. Other Europeans started to make more calculators after him. They were not modern computers because they could only add, subtract, and multiply.
Charles Babbage wanted to make a machine that could calculate. He called it "The Analytical Engine". But Babbage did not have enough money. That was why he always changed his design when his new idea was better than the previous one. As a result, he never built his “Analytical Engine”.
Nowadays there are many different computers and they are used by almost everybody. I have had it for seven years and it helps me a lot."
Это законченный текст, в каждый пропуск вставлены правильные формы глаголов.