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外语
Mr. White works with a chemicals import & export company, but he_________for this industrial fair, since he is on leave.
Mr. White works with a chemicals import & export company, but he_________for this industrial fair, since he is on leave.
admin
2012-07-22
76
问题
Mr. White works with a chemicals import & export company, but he_________for this industrial fair, since he is on leave.
选项
A、has worked
B、works
C、has been working
D、is working
答案
D
解析
语法规则。之所以用D而不用C,因为句子中有since从句表示原因。
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专业英语四级
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