【题目】______ over a week ago, the books are expected to arrive any time now.
A.Ordering
B.To order
C.Having ordered
D.Ordered

【答案】D
【解析】题目考查过去分词作状语。句意：（因为）那些书是一周多之前订的，现在随时有可能送到。books和order是动宾关系，即order books/books are ordered，故用过去分词表示被动和完成，在此相当于原因状语从句because they wereordered……，故选D。