Answer:
Topic Sentence for Paragraph 2:
Goddard was able to make great contributions to the field of engineering after receiving modest support from a few sources.
Topic Sentence for Paragraph 3:
He thus began his lifetime of dedicated work.
Closing Sentence for Paragraph 4:
Goddard's acclaim partially stems from his work developing the first rocket using liquid fuel.
<span>It suggests a better plan instead of the present one.Because your saying that you have a better idea than buying it online instead of a test drive because what if that car has a bad engine</span>
No, they can't since they are minors
