A detailed investigation __________ after every accident or near miss which takes place in or near the airport.
a) carries out b) is carrying out c) is carried out
A detailed investigation __________ after every accident or near miss which takes place in or near the airport. a) carries out b) is carrying out c) i
By Clara
c) is carried out
b) is carrying out
bởi vì trên mặt ls thuyết thì dùng cụm từ này là hợp lý