Questão número 635965

Consider: “Up until a year or so ago, Ms. Rousseff, the former chief of staff of President Luiz Inácio Lula da Silva, had worked mostly behind the scenes(…)”. Where is the verb and what is its verb tense?

• A.

  so – Simple Present.

• B.

  former – Present Perfect.

• C.

  so ago – Simple Past.

• D.

  had worked – Past Perfect.

• E.

  mostly behind – Present Perfect.