Final answer:
The sentence 'Rita has a book she bought it last week' can be completed using pronouns to say 'Rita has a book. She bought it last week. It is very interesting.'
Step-by-step explanation:
The sentence you provided, 'Rita has a book she bought it last week ...', can be completed using pronouns like this: 'Rita has a book. She bought it last week. It is very interesting.' In this revision, 'She' replaces the noun 'Rita' and 'It' replaces 'the book,' providing variation and making the sentence smoother to read.
Learn more about using pronouns