Both are available. Double quotation marks and single quotation marks are used differently in sentences.

Usage of double quotation marks:

(1) Indicates what the person in the text said.

"I've?been?thinking?about?this?afternoon,?you?know,"said?Halliday?rather?suddenly.

(2) Quote words or phrases .

How?do?you?spell?the?word?"across"?

(3) Unusual words are also commonly used in quotation marks to attract attention.

The?noun?to?which?a?relative?pronoun?refers?is?called?the?"antecedent"?of?the?pronoun.

The relative pronoun refers The pronoun of pronoun is called the "antecedent" of the relative pronoun.

(4) Quotation marks are also used in the titles of books and poems.

Have?you?read,?"The?Jungle"?

Have you read "The Slaughterhouse"?

2. Usage of single quotation marks

There is no difference between these two types of quotation marks, but double quotation marks are more versatile. Single quotes seem to be mostly used in the UK.

She?enjoyed?the?film?'Madame?curie'.

She enjoyed the film "Madame Curie" very much. (British custom)

She?enjoyed?the?film?"Madame?Curie."? (American custom)

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