The traffic was held up for more than thirty minutes, ________ caused me to arrive late.
D
非限制性定语从句引导词的选取。
Sofarscientistshaveonlyacquired________understandingofthephysicalprocessesthatcauseearthquakes.
Peopleappreciate_______withhimbecauseheisknowledgeableandhumorous.
Thetrafficwasheldupformorethanthirtyminutes,________causedmetoarrivelate.
Iwouldlove________tothepartylastnightbutIhadtoworkextrahourstofinishareport.
_______ at all is worth doing well.