Contents Preface introduction unit 1

Read the text and complete the sentences with the correct preposition.

Advantages of/for online teaching and learning include flexibility to attend classes study and interact when it’s convenient. This flexibility is often a necessary rather than a luxury for/in adult students who are often managing a job, a marriage and raising children. The flexibility makes it possible of/for many adults to attend class that would otherwise be unable in/to do so. Another important advantage results from the fact that the classes take place at/ in cyberspace. Students can attend during their lunch hour on/at night or virtually any other time without worrying about needing to park or make it to a specific location at/in bad weather. This is a tremendous advantage that is important of/for both the instructor and the student.

17.