精选优质文档-倾情为你奉上美国社会生活练习 1. The popular kind of family in America is _ family. A 核心家庭A. nucleus B. loose C. large D. blend2. Thanksgiving Day is originated in _. BA. England B. America C. Scotland D. Canada3. The “senior citizens” in the social centres refer to _. DA. high officials B. professors C. president D. old people4. Most Americans are _ from different countries. C 移民移出A. blacks B. Indians C. emigrants D. immigrants（移入移民）5. Valentines
