None of the articles in this case is of any use to us, and we ho

None of the articles in this case is of any use to us, and we hold them _______ your disposal _______ your instruction.
A、for, waiting
B、by,awaiting
C、under, depending
D、at, pending
【正确答案】:D
【题目解析】:
句意:None of the articles in this case is of any use to us, and we hold them _______ your disposal _______ your instruction.