... for three months C. take it easy inside of three months D. could take some vacations for three months 26. _______ we have finished the course , we should start doing more revision work . A. ... Harvard.A. come second to B. are first C. are second only to D. are in second place II.1. The technological and economic changes of the 19th century had a marked …………… on workersA. cause ... refer D. mentionIII.In developing nations, the (31) _____ of food is the primary cause of malnutrition. Famine,drought, war, and (32) ____________ systems of food distribution contribute to...