Nancy ________ for hours aimlessly along the street, and was unwilling to go back home to face her parents

How did your uncle learn to play the guitar一By ____.

I am told to guess the meaning of an unknown word, but my question is _______ I still can’t understand its meaning.

Have you ever met with this case in your life 　　　　 you can’t understand others even if they have said something several times？

下列词语中，没有错别字的一项是（ ）