1. There are ... twins.

a
two
an

2. Let's have ... tea.

a cup of
an
a

3. Do you want some ... .

candies
a piece of candy
candy

4. ... tourists are in London.

That
These
This

5. Are there ... other questions?

some
any
a

6. I need ... apples for the recipe.

some
any
an

7. We eat ... vegetables.

an lot of
a lot of
a lots

8. ... are the tickets? 50 dollars.

How much
how many
how

9. There are ... more things I'd like to discuss.

a few
an few
the few

10. Susan speaks ... English.

a little
the little
littles