问题
选择题
. Although their new factory building is still under ________ construction, we have already placed _______ order for 200 pairs of shoes.
A．the ; an
B．a; an
C．/; /
D．/; an
答案
答案：D
考查固定搭配。Be under construction在建设中；place an order订购，下订单。所以选D。