In the following questions some of the sentences have errors and some have none. Find out which part of a sentence has an error corresponding to the appropriate letter (a), (b), (c). The number of that part is your answer. If there is no error, your answer is (d).Question Unless you return the books (a)/ you have borrowed (b)/ I will lend you more books (c)/ No. Error (d).

• A. a
• B. b
• C. c
• D. d