Choose the word for blank 2. (Public libraries)

Public libraries are not only places to borrow books. Many now offer free internet access, classes for adults and activities ___1___ children. The staff are always ready to help ___2___ you cannot find a book. Some libraries even lend tools, games and musical instruments. As a result, libraries ___3___ more and more popular with people of all ages. If you have never joined one, it is ___4___ time you ___5___ one.

Answer and explanation

Correct answer: B. if

  1. Step 1: 'If' introduces the condition under which the staff help.
Answer
if.
Why not the others: unless, although and until don't fit.

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