Answer: If he does not speak Arabic, he can not act as the interpreter.
Explanation:
The inverse statement of a conditional statement (If p then q ) is given by :-
If not p then not q.
The given conditional statement : " If he speaks Arabic, he can act as the interpreter. "
Then the inverse of the given conditional statement is given by :-
"If he does not speak Arabic, he can not act as the interpreter. "