radio

<form>
  <input type="radio" name="paliwo" value="benzyna" checked> Benzyna<br>
  <input type="radio" name="paliwo" value="ropa"> Olej napędowy<br>
  <input type="radio" name="paliwo" value="gaz"> Gaz
</form>

Benzyna
Olej napędowy
Gaz

<form>
  <input type="radio" id="benzyna" name="paliwo" value="benzyna"><label for="benzyna">Benzyna</label><br>
  <input type="radio" id="ropa" name="paliwo" value="ropa"><label for="ropa">Olej napędowy</label><br>
  <input type="radio" id="gaz" name="paliwo" value="gaz"><label for="benzyna">Gaz</label><br>
</form>

Benzyna
Olej napędowy
Gaz

checkbox

<form>
  <input type="checkbox" name="towar1" value="ziemniaki"> Ziemniaki<br>
  <input type="checkbox" name="towar2" value="maka"> Mąka<br>
  <input type="checkbox" name="towar3" value="jablka"> Jabłka<br>
</form>

Ziemniaki
Mąka
Jabłka

<form>
  <input type="checkbox" name="towar1" value="ziemniaki"> Ziemniaki<br>
  <input type="checkbox" name="towar2" value="maka"> Mąka<br>
  <input type="checkbox" name="towar3" value="jablka" checked disabled> Jabłka<br>
</form>

Ziemniaki
Mąka
Jabłka