问题
选择题
In the less than two months since the reality television show—"Where Are We Going , Dad?" first aired, the show to the top of Chinese television ratings．
A．had climbed
B．has climbed
C．climbed
D．was climbing
答案
B
题目分析：考查动词的时态。句意：自从爸爸去哪儿这个节目开播以来，短短两个月，这个节目占据收视率的首位。根据上文提到since the reality television show—"Where Are We Going , Dad?" first aired 自从这个节目开播以来，与现在完成时连用，故选B项。
考点 : 考查动词的时态