While the secretary ____ his desk, he found the long lost report. A.had been cleaningB.is cleaningC.has been cleaningD.was cleaning
While the secretary ____ his desk, he found the long lost report.
A.had been cleaning
B.is cleaning
C.has been cleaning
D.was cleaning
相关考题：
Client: Hello. May I speak to Mr. Black?Secretary:_______A: Speaking, pleaseB: I ’m sorry. He ’s at a meeting right now.C: Hello. Who ’re you, please?D: Hello. Thank you for calling.
______ in the strange city, the poor boy fell toA. Lost... cryingB. Lost... cryC. Having been lost... cryD. To lose... crying
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Secretary一词源自《圣经》。