Question

2. Many people predicted that certain scientific breakthroughs like super-fast trains
could never be achieved. Yet, scientists have worked on those ideas and proven them
wrong. What lesson do we learn from this?
ects?
​

Answer 1

Answer:

If at first you don't succeed, try, try again.

Examples:

1)Johny failed his mid term exam he got 43 out of 100

Next time in final exam Johny scored 84 out of 100!Hence passing the exam.

proverb:if at first u dont succeed,try,try again