2019年mpa考试英语真题——连词1679

{01}The boy was so tired that he fell asleep _____________ his mother could take off his clothes． A.before B.after C.while D.where 解析：             
试题分析： 考查连词辨析。A．before在。。之前；B．after在。。之后；C．while然而；D．where 哪；句意：在他妈给他脱衣服之前这个男孩累得睡着了。根据文中提到The boy was so tired that he fell asleep可见他妈还没来得及给他脱衣服，故选A项。       
考点 : 考查连词辨析
本题选A。
{02}You cannot take back your words _________ they are out of your mouth. A.before B.whether C.once D.while 解析：             
试题分析：考查连词辨析。句意：一旦话已出口，你不能收回你说的话。Take back 收回。they are out of your mouth是主句的假设条件，故选C项。  
考点 : 考查连词辨析
本题选C。