1. Analysis of the skeletal material indicates / suggests that the individuals identified were adequately nourished and generally in good health.
   
   
2. This study of MOOCs (Massive Online Open Courses) discusses some possible / all implications for higher education institutions.
   
   
3. a) A significant number of / The students in this study b) remembered / tended to use the past simple tense in their writing only when prompted.
   
   
4. It is inevitable / There is a strong likelihood that such artificial neural networks will eventually be used in civil engineering applications.