Using A/An and One in English

When do we use a/an with singular countable nouns?

• When referring to something specific

• When talking about them in general

• Only when they start with a vowel

• Only in negative sentences

Which sentence correctly uses a/an with the verbs to be and have (got)?

• Mary has a dog.

• She is teacher.

• I have got book.

• He is actor.

When do we use a/an before titles like Mr./Mrs./Miss/Ms.?

• When referring to a known person

• When referring to an unknown person

• When using formal speech

• We never use a/an before titles

Which of the following uses a/an correctly to show price, distance, or frequency?

• Three pounds kilo

• Twice a week

• A 80km an hour

• One kilo a two dollars

Which sentence is incorrect based on the rules for a/an?

• We need some milk and some flour.

• I have a car.

• She bought a flowers.

• He is a teacher.

Why can't we use a/an before an adjective if no noun follows?

• Because adjectives don't need articles

• Because a/an is only for specific nouns

• Because an adjective alone cannot be an object

• Because adjectives are always uncountable

When do we use a/an instead of one?

• When counting items

• When emphasizing the number

• When referring to an unspecified thing

• When talking about specific amounts

Which sentence correctly emphasizes one to mean exactly one item?

• He bought a tie.

• He bought one tie.

• He bought some ties.

• He bought a ties.

Which sentence correctly uses one for narration?

• One summer, we traveled to Europe.

• We traveled to Europe every summer.

• Summer is my favorite season.

• I love summer.

What does "One day, you will regret this" mean?

• A specific day in the future

• Any random day in the past

• A general future time

• The same day every year