A-A+
Mr. White works with a chemicals import export
问题详情
Mr. White works with a chemicals import export company, but he for the industrial fair, since he is on leave.
A．has worked
B．works
C．has been working
D．is working
参考答案
正确答案：D
解析：分析句子结构，根据since he is on leave的提示，说明是指他现在在做什么，强调节器的是现在，所以正确答案是D。
