990年全国硕士研究生入学统一考试英语试题Section I Structure and VocabularyIn each question, decide which of the four choices given will most suitably complete the sentence if inserted at the place marked. Put your choice in the ANSWER SHEET. (15 points)EXAMPLE:I was caught _ the rain yesterday.A inB byC withD atANSWER: A1.Those two families have been quarrelling _ each other for many years.A toB betweenC against(D)D with2.There are many things whose m