21.A.movies 由下一句there are many movie posters on the wall.可知
22.B.are many movie posters 为复数
23.B.favorite Jackie Chan 成龙,最喜爱的演员
24.A.D.exciting exciting 修饰事,excited修饰人
25.A.thrillers 由 scary 吓人的;可怕的推断出
26.B.great 排除法去掉A C,还剩funny与题意不符
27.A.One 有一件趣事,用one
28.C.Beijing opera 由下一句He often goes to see Beijing Opera with his father 推断出.
29.D.with 和某人一起用with
30.D.His 由前一句和爸爸一起看,推断出他的爸爸也喜欢.