1．The debate was televised in front of a live ________ (观众)．
答案：audience
2．It is difficult to figure out a ________ (全球的) population of polar bears as much of the range has been poorly studied.
答案：global
3．He jumped for ________ (喜悦) on being told the news.
答案：joy
4．At that time these amounts were forbidding to most ________ (公民)．
答案：citizens
5．While the other children ________ (互动) and played together, Ted ignored them.
答案：interacted
6．Judging by her dress, she may be of the Yi n________.
答案：nationality
