Wehadbetternotbotherourprofessorthesedays,forheisawful...

问题详情：

 We had better not bother our professor these days, for he is awfully busy preparing a report _____ at an international conference next month.

     A. being delivered         B. to be delivered  C. to deliver             D. delivered   

【回答】

B

知识点：非谓语动词

题型：选择题