The film produced by DreamWorks was set in ________ and the heroine was in her ________．
A.the 1840s; thirtiesB.the 1840s; thirtyC.1840s; thirtiesD.1840s; thirty在线课程A
考查年代及岁数的表达方式。in the 1840s表示“在19世纪40年代”；in one's thirties意为“在某人30多岁时”。