Question

The thief _______ (leave) the place before the police ______ (come)​

Answer 1

Explanation:

The their left the place for the police came.

Hope it helps you

Answer 2

Answer:

The thief had left the place before the police came.

Explanation:

This is coz' teh first action here is the thief leaving. So, if there are 2 actions in the sentence, the tense of the first action should be past perfect. and second action, simple past.