【单选题】The manager didn't have time to go into his plan ______, but he gave us an idea about it.
                    
A.in turn
B.in conclusion
C.at first
D.at length
                
							【单选题】The manager didn't have time to go into his plan ______, but he gave us an idea about it.
                    
A.in turn
B.in conclusion
C.at first
D.at length
                
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