1 is correct
2 would be correct if Winter were spelled correctly.
3 is OK, but without the capitals W and S.
4 would be OK if capitalization were correct.
5 is correct.
2. Today was Wnter Solstice Day. It is a big holiday in Antarctica.
3. Today was Winter Solstice. It is a big holiday in Antarctica.
4. Today was the winter solstice day. It is a big holiday in Antarctica.
5. Today was the winter solstice. It is a big holiday in Antarctica.
[Which expressons are grammatical?]
2 would be correct if Winter were spelled correctly.
3 is OK, but without the capitals W and S.
4 would be OK if capitalization were correct.
5 is correct.
Explanation:
1. Today was Mid-Winter Day. It is a big holiday in Antarctica.
This sentence is grammatical. "Mid-Winter Day" refers to the middle of winter in Antarctica and is capitalized as a proper noun. The sentence is clear and makes sense.
2. Today was Wnter Solstice Day. It is a big holiday in Antarctica.
This expression is not grammatical. "Wnter" is misspelled, and "Solstice" should be capitalized as a proper noun. The correct spelling is "Winter Solstice Day."
3. Today was Winter Solstice. It is a big holiday in Antarctica.
This sentence is grammatical. "Winter Solstice" is correctly capitalized as a proper noun. The sentence is clear and makes sense.
4. Today was the winter solstice day. It is a big holiday in Antarctica.
This expression is not grammatical. "winter solstice day" should not be capitalized. Additionally, "Winter Solstice" is a proper noun and should be capitalized. The correct phrasing would be "Today was the Winter Solstice. It is a big holiday in Antarctica."
5. Today was the winter solstice. It is a big holiday in Antarctica.
This sentence is grammatical. "Winter Solstice" is a proper noun and should be capitalized. Since "winter solstice" is a common noun, it is not capitalized. The sentence is clear and makes sense.