题目内容

Mr.White works in an import and export company,but he_____for this industrial 
fair,since he is on leave.?
A．has workedB．works?
C．has been workingD．is working?
D   
 考查动词的时态。本题选择现在进行时表示“临时、暂时做某事”。句意为：怀特先生在一家进出口公司工作，但是他在休假期间，在为这次工业展销会工作。
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