a/an vs zero article
a/an, the or zero article
the vs zero article 1
the vs zero article 2
100

I have (a, an, -) book

a book

100

(a, an, the, -) monkey like bananas.

_monkeys

100
I am having (the, -) breakfast now. 

_breakfast

100

(-, the) Browns live next door. 

The Browns

200

There is (a, an, -) apple.

an apple

200

Give me (a, an, the, -) book over there.

the book

200

(-, the) Italians love pasta. 

The Italians 

200

Look at (-, the) sky, it`s beautiful. 

the sky

300
She is (a, an, -) doctor.

a doctor 

300

I have (a, an, the, -) cat. (a, an, the, -) cat is cute.

I have a cat. The cat is cute.

300

(-, the) Check Republic is in (-, the) Europe. 

The Check Republic is in Europe.

300

(-, the) Central Park is in New York.

_Central Park

400

(a, an, -) tiger is (a, an, -) very dangerous animal.

A tiger is a very dangerous animal.

400

(a, an, the, - ) Amazon river is long.

The Amazon River

400
(-, the) Madagascar is an island. 

_Madagascar

400
(-, the) Baikal is a lake in Russia.

_Baikal

500

(a, an, -) education is very important.

_education

500

(a, an, the, -) Pacific Ocean is beautiful.

The Pacific Ocean

500

(-, the) Everest is the highest mountain.

_Everest 

500

(-, the) Baker Street is in London.

_Baker Street