有兩題英文題目想請教

1) Massachusetts was first employee (A) in the late sixteenth and early (B) seventh centrist (C), and the first settlement (D) at Plummet in 1620. No error (E)
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2) The dramatic (A) first-floor gallery of the (B) new museum is devoted (C) to the resident artist's series of five oversize mural (D). No error (E)
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請問各位大哥，上面兩句子中哪些地方有問題和為什麼。