I don't really work here. I ________ until the new secretary arrives.A.just help outB.have just helped outC.am just helping outD.will just help out
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C解析【巧解导析】由I don't really work here可知，不是一直在这儿工作，只是暂时性的，排除A项；又由until一词可知，这一动作直到新秘书到来时为止，排除D项；B项不合题意．