Her smile made me feel warm and lively. It was like a hidden ______.

(单选题)medicine (单选题)stomach (单选题)The health security systems of many countries are undergoing (单选题)The boy raised in the countryside has made ______ as those b (单选题)We Chinese are willing to give help to ______ is friendly to (单选题)The best thing for Molly now is that ______. (单选题)According to the passage, Molly ______. (单选题)Sally seems to be a good manager because ______. (单选题)The underlined phrase “be involved in” in the passage probab (单选题)The passage is mainly about ______.