Level: beginner

We use one (singular) and ones (plural):

See those two girls? Helen is the tall one and Jane is the short one.
Which is your car, the red one or the blue one?
My trousers are torn. I need some new ones.

See those two girls? Helen is the one on the left.
Let's look at the photographs – the ones you took in Paris.

after which in questions:

You can borrow a book. Which one do you want?
Which ones are yours?

one and ones 1


one and ones 2




I m jst enjoying doing these exercises.........thanks a ton

Jesus!! I love your website ssooo much!!! You help people to improve their English!!! Thanks for everything what you did for us!!)

Hello Arnold 9595!
Thanks for your kind words - great to hear that you find the website so useful!
Good luck with your studies!
The LearnEnglish Team

hi thank you to have this site for all people who want to learning grammar. To day getting there, but not 100?% but keep going not give up.

good exercise

I'm very of been a part of this site......for corrections.

iam little bit confused about using article one of those
may i ask what's is the rght one between one of those factories are soybean factory or one of those factories is soybean factory?

Hello yun samaniah,
The clue is in the phrase: 'one of those...' tells us that you are talking about one thing, not many, so the verb should be singular:
'One of those factories is a soybean factory.'
You need an indefinite article as well because it is the first time it has been mentioned.  If you had talked about the soybean factory before then you might say 'the'.  For example:
'I work in a soybean factory.  One of those factories is the soybean factory.'
I hope that clears it up for you.
Best wishes,
The LearnEnglish Team

hii!! thanks 4 ur working it is really verry interesting & nice

its really helped for who want to knows what the diffrence between one and ones