问题
选择题
The letter ______ three days ago and it ______ yesterday. [ ]
A. had post, had arrived
B. was posted, arrived
C. posted, arrived
D. had been posted, was arrived
答案
答案：B
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The letter ______ three days ago and it ______ yesterday. [ ]
A. had post, had arrived
B. was posted, arrived
C. posted, arrived
D. had been posted, was arrived
答案：B