The boy got lost after arguing with his parents.Which is correct for the underlined part

It is unhealthy _______ us to eat too much sweet food and it is wrong _______ us to buy sweet food every day.

Don’t me. I can hear you very well.

Notuntil they left school ______ how much their teachers loved them and helpedthem.

1_______ second hat doesn’tfit me, either. Could I look at _______ third one