【题目】Mary dropped the vase, but her mother stared at her _____ she had done something clever．
A． in case B． as if
C． o that D． Though
在线课程【答案】B
【解析】考查连词。A．in case以防；B．as if好象；C．so that 因此；D．though 虽然；句意：玛丽摔了花瓶但她的妈妈看着她好象她做了件很了不起的事。根据she had done something clever选B项