Complete the sentences with singular or plural nouns and a or an, if necessary.
Singular
1 It's a city.
2 She's
.
3 Are you a waitress?
4 He's not
.
5 It's a watch.
6 It's not
an umbrella
.
7 I'm a woman.
8 He's
.
Plural
They're
cities
.
They're actors.
Are you
waitresses
?
They're not children.
They're
watches.
.
They're not umbrellas.
We're
.
They're people.