unit 2 what is happiness to you? ⅰ.单项填空 1．doctor nathan is said to have been ________to researching into wild animals in africa for more than ten years. a．absorbed b．devoted c．concentrated d．engaged 答案 b [表示“投身于，全神贯注于……”有如下结构：be absorbed in；be devoted to；be engaged in；concentrate on。故四个选项中只有devote和to搭配使用。] 2．the boy is so shy that he can't ________very well ________others. a．communicate；to b．communicate；with c．get along；to d．deal；with 答案 b [communicate sth to sb把某事传达给某人；communic
