Which is the correct verb form for this sentence?

living in a cold climate has been an easy adjustment for me, but it become more difficult dealing with the snow.

a.
have

b.
having

c.
has

Click to review the online content. then answer the question(s) below, using complete sentences. scroll down to view additional questions. site 1: "schools of literary theory" site 2: "the tell-tale heart" by edgar allan poe according to plato, how does one judge the value of a piece of art? (site 1)

Concise summary of the key points of your research that come before the body paper is called a(n)

What sign post goes with the quote goodnight goodnight parting is such sweet sorrow. that i shall say goodnight till it be morrow