Question 30: The police are……………… an incident which took place this afternoon.

Prize:
– inspect /ɪnˈspekt/ (v): inspect, inspect
Eg: The teacher walked around inspecting their work.
– search (v): search, search
Eg: I’ve searched high and low, but I can’t find my birth certificate. (I’ve searched everywhere, but I can’t find my birth certificate.)
– look out ~ watch out (v): beware, be careful
Eg: Look out! There’s a car coming.
– investigate /ɪnˈvestɪɡeɪt/ (v): investigate
Eg: Police are investigating what happened.
=> Answer D (The police are investigating the accident that happened this afternoon.)