Question

Thomas (should'nt, shouldn't) complain about the dinner his wife prepared for
him.

Answer 1

The answer is shouldn’t.

Step-by-step explanation:
The ‘ is in the place of the o in not. So should not= shouldn’t.

Answer 2

Answer: Shouldn't

Step-by-step explanation:

Should'nt is not a word, you always put "n" before '.