Question

which is the best way to complete the text?
sir william herschel discovered __________ was also the first astronomer to accurately describe the spiral structure of the milky way galaxy.
uranus, and he
uranus, and, he
uranus, in addition,
he

Explanation:

To complete the sentence, we need proper punctuation and conjunction usage. The first option "Uranus, and he" connects the two clauses ("Sir William Herschel discovered Uranus" and "he was also the first astronomer...") correctly with a comma and the conjunction "and" to introduce the second independent clause. The second option has an extra comma after "and" which is incorrect. The third option "in addition" is a phrase that would require more punctuation or restructuring to connect the clauses properly, while "Uranus, and he" is a straightforward and correct way to link the two parts of the sentence.

Answer:

A. Uranus, and he