Choose the answer which correctly completes the sentence

Choose the answer which correctly completes the sentence.

Loneliness together with depression and lack of trust … an important role in the loss of self-respect.

A)are playing B) have played C) play D) plays

15. 
    Choose the answer which correctly completes the sentence.
    

• 
  I can`t bear people who are smoking in a closed area without asking permission from the non-smokers. - … .
  

1. 
   So am I B) Neither do I C) I can`t either D) But I can`t
   

16. 
    Choose the answer which correctly completes the sentence.
    

Considering that his grades were well … average, we can assume that he passed his exams … high grades.

1. 
   In/through B) for/from C) on/out of D) above/with
   

17. 
    Choose the answer which correctly completes the sentence.
    

We were victims of our own success. When we opened the doors at nine, so many mothers bringing their children for the vaccination against polio … that the surgery was in chaos.

1. 
   Bumped into B) ran out of C) looked after D) flooded in
   

18.