问题
听力题
小题1: Collecting stamps is one of my __________（爱好）.
小题2:It’s not __________（礼貌的）to talk with your mouth full.
小题3: I think the telephone was __________（发明）in 1876.
小题4: China is getting richer and stronger in the new __________（世纪）.
小题5: We’ll be able to finish the project _________（容易的）.
答案
小题1:hobbies
小题2:polite
小题3:invented
小题4:century
小题5:easily
小题1:hobbies， one of 后面跟可数名词复数形式，所以应用 hobbies
小题2:polite ，It’s adj to do sth为做某事是……的，所以应用形容词polite
小题3:invented，本句为被动语态，所以应用过去分词形式invented
小题4:century，“在新世纪”，应用名词：century
小题5:easily，“easily”是一副词，修饰动词“finish”.故用：easily