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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1263

I__________ letters this morning and I__________ for four hours so far.

A.will write; wrote
B.have written; have written
C.was writing; wrote
D.have been writing; have written
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IlettersthismorningandIforfour