Is there sugar in my coffee?
(Use "any" for questions in negative contexts or with "any" for unspecific quantities)

My brother has new jeans.
(No article needed here since "new jeans" is a general description.)

There are some accidents on the street now.
(Use "some" for positive statements about an unspecified number.)

My dog’s hungry. Give it a bone.
(Use "a" for a singular countable noun, in this case, "bone.")

I need some paper and a pair of scissors.
(Use "some" for uncountable nouns like "paper", and "a pair of" for "scissors" since they are a plural noun representing a set.)

There’s an airport in the city.
(Use "an" before words that begin with a vowel sound, in this case, "airport".)

Mom will buy 2 oranges tomorrow morning.

Do you often have a cough in the winter?
(Note: "Don't believe in blood color" doesn't seem related to the question. You may want to rephrase or correct this.)

Mr. Smith is not standing in front of his house.

How far is it from your house to the cinema?

Mrs. Jane is sneezing in the living room now.

Is Peter suffering from sore eyes these days?

I have a headache.

Are there chocolates here?

John has an older brother and a younger sister.
(Use "an" before words starting with a vowel sound like "older" and "younger".)

Would you like some coffee?
(Use "some" when offering or requesting uncountable things like "coffee.")

I have a dog and some mice.
(Use "a" for singular countable nouns like "dog" and "some" for plural uncountable or indefinite nouns like "mice.")

We have to wait for a few minutes.
(Use "a few" when referring to a small number of things or people.)

Is there any lemonade left?
(Use "any" in negative statements or questions.)