问题
选择题
The wonderful time they had been looking forward ____ at last.
A．to arrive
B．to arrived
C．to arriving
D．should arrive
答案
答案：B
考查时态。句意：他们一直盼望的美好时刻终于到了。they had been looking forward（盼望）后面缺少介词to，结合语境可知本句描述的是过去发生的动作，故用过去时态。故选B。