问题
选择题
The reporter said that the UFO ________ east to west when he saw it.[ ]
A. was traveling
B. traveled
C. had been traveling
D. has traveled
答案
答案：A
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The reporter said that the UFO ________ east to west when he saw it.[ ]
A. was traveling
B. traveled
C. had been traveling
D. has traveled
答案：A