（ ）

(单选题)What does the underlined word “it” in Paragraph 3 refer to? (单选题)What is Dr Kyriazis’ opinion probably based on? (单选题)Which of the following is the best title of this passage? (单选题)To deal with the problem in recent years, exchange programme (单选题)Vickie Weiner is the person who ______. (单选题)According to the text, why was it easier to find host famili (单选题)Which of the following can first be chosen as a volunteer? (单选题)The volunteers’ primary responsibility is to help people wit (单选题)What does the underlined part mean? (单选题)The text is meant to ______.