Сопоставим вопросы и ответы.
<h3>Ответ:</h3> <ol> <li>0 - с. What are these? They're teddy bears!</li> <li>1 - b. Look at these roller-skates! They're really cool!</li> <li>2 - d. Here are your presents! Oh, thank you!</li> <li>3 - a. What's this? Open it and see!</li> </ol>