Unless a new approach is found to controlling the number of cars,we
will never find a solution to the dilemma.这个句子为什么controlling用的不是原型control,没有查询到有be found to中以to作介词的用法,这里应该是正常的不定式吧,那为什么用doing形式?
Choose the most natural-sounding option:A. My girlfriend and I clashed over whose turn it was to wash up.B. My girlfriend and I argued over whose turn it was to wash up.The answer is B.请问:(1) clash over 和 argue over 有什么不同?(2) 如何理解句中的 whose?