The mother looked at the door ，expecting the children’s ing．
A. actually
B. exactly
C. entirely
D. frequently
网友回答
A. actually
B. exactly
C. entirely
(答案→)D. frequently
解析：考查副词：A．actually实际上，B．exactly确切的，C．entirely完全地，D．frequently频繁地，句意：妈妈频繁地看着门，期望孩子回来。选D。