精选优质文档-倾情为你奉上大学英语单选集IIIVocabulary and Structure (15%)Directions:For each of the following incomplete sentences, there are four words or expressionsmarked A, B, C and D. Choose the one that best completes the sentence.41. I was so _ in my book that I didnt hear the door bell ring.A. concentrated B. absorbed C. engaged D. occupied42. Its important to locate industries in areas where a supply of raw materials is _. A. preferable B. available C.
