Yes it can be, although only under certain circumstances. For example, someone hands you an object you have never seen before, and you say, "I don't know what this is." Or, you are asked if you agree that this room is the right place for the meeting, and you say, "Yes, I think it is."
No, the correct sentence would be "Who is the singing woman?" by adding a question mark at the end. It is asking for the identity of a woman who is singing.
It depends on the context of what you are writing.
Yes, it is grammatically correct to end a sentence with the word "so." However, it may be informal or conversational in style.
The correct punctuation for the sentence "Hamsters are your favorite pets" is a period at the end.
It may be. There is no word in English that cannot begin or end a sentence. The idea that certain word are unfit to end a sentence comes from Latin grammar, not English.
No, it is not a correct sentence. Consider rephrasing to "We will need your money the the end of March."
no
With the exception of capitalizing the first letter of the sentence and a period at the end, the sentence is correct.
No, that wouldn't be a complete sentence. You could end a phrase with are. eg You are stupid. No I am not. You are!
"It is dark in the night." is a correct sentence if you remember to capitalize the first letter of the sentence and put a period at the end.
No, the correct sentence would be "Who is the singing woman?" by adding a question mark at the end. It is asking for the identity of a woman who is singing.
It depends on the context of what you are writing.
Yes, it is grammatically correct to end a sentence with the word "so." However, it may be informal or conversational in style.
The correct punctuation for the sentence "Hamsters are your favorite pets" is a period at the end.
No, "When does the sale end" is better.
It may be. There is no word in English that cannot begin or end a sentence. The idea that certain word are unfit to end a sentence comes from Latin grammar, not English.
If my computation is correct, the world will end this December.