题目

---The movie 2012 will be on at 8 pm．What about picking you up at 7? ---All right．I will have come back from work by then, and I       you at home． A．will be waiting for    B．will wait for C．have been waiting for  D．am waiting for   答案： A 表示将来某个时间在做什么，故选将来进行时。  

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