Unit 2
We use there is (singular) / there are (plural) to say that sth is located in the place or exists: e.g. There is a book on the desk. / There are manybooks on the shelf. We use there isn’t (singular) / there aren’t (plural) to say that sth isn’t located in the place or doesn’t exist: e.g. There isn’t a book on the desk. / There aren’t any books on the shelf. We use Is there…? (singular) / Are there...? (plural) to ask whether sth is located in the place or exists: e.g. Is there a book on the desk? / Are there any books on the shelf? Exercises We use A or AN with singular nouns. A is used when a noun starts with a consonant sound; e.g. a dog, a book, etc. AN is used when a noun starts with a vowel sound; e.g. an apple, an hour, etc. We use SOME with countable nouns (only with their plural) and with uncountable nouns. SOME is used in: * positive sentences; e.g. I have got some time. * questions, expressing requests and