1 study or study at home, and show proof, such as your test report or proof of this period.

I did something in a company near my home, so I didn't put it in my resume because I didn't change my job for a short time.

To be honest, I am looking for a job or a way of further study or something else.

The last trick is suitable for the situation that your personal ability is relatively tough and capable: tell the other person confidently that you did something during this blank period, but you think these things have nothing to do with the position you are applying for, so as not to arouse the other person's suspicion and save space, and deliberately omit them. If the other person is determined, you can confuse the past-but this is rare.