Analyse the contractions 1 to 4 indicated by the apostro

Analyse the contractions 1 to 4 indicated by the apostrophes in the excerpts below and the context of the sentences in the article:

•  We'd (1) always wanted to write a Bond song. (l. 04).

•  We'd (2) been writing motifs and thinking of melodies for a couple of years (l. 05).

•  We're (3) writing about something that's (4) happened (l. 15).

Choose the alternative with the options that correctly correspond to each contracted word.