1. The children are playing in the garden.

2 .I don’t like milk.

3.I prefer tea.

4. Scientists say that the environment is threatened by pollution.

5. My mother uses butter to prepare cakes.

6. There are a lot of windows in our classroom.

How to Use the Indefinite Articles A vs. An
The two indefinite articles in English are a and an. The indefinite article an is used to make pronunciation easier when reading a text aloud. The general rule is to use a when the indefinite article precedes a word beginning with a consonant sound and an when it precedes a word starting with a vowel sound.

Ex.1 Insert many or much

1.There is……….fruit in the basket.

2. There is ………….money in my purse.