Under the influence of Ezra Pound, Hilda Doolittle became associated with the Imagist and ________ into one of the most original poets of the group.
句意： 在埃兹拉·庞德的影响下， 希尔达·杜立特与意象派产生了联系， 并发展成为该派最原始的诗人之一。 developed与became在句中为并列成分， 均使用过去式陈述过去的事实， 故正确答案为A。