英文唔識~~入

Complete the following passage with simple past, present perfect or past perfect tenses.

Mini-skirts, yoyo, skate-boards or what you (1)________(come) in at one point or another in the past, they may (2)_____(have) their heyday but they somehow (3)______(go) out at the end because they are passing fads. The same cannot be said of pop music. Pop music is always there, providing an inexpensive form of entertainment for the people.

In the sixties and seventies, English pop songs which (4)____ mainly ____(import) from the United States and England (5)_______(monopoly) the market. The Beatles, the Rolling Stones, Elton John, Simon and Garfunkel and many others (6)______(become) household words. Their records (7)_______(sell) extremely well. In the local scene, a lot of young people (8)______(team) up and (9)______(form) pop groups of their own because there was an atmosphere of learning foreign language at that time. Many students (10)_____(make) a point of learning English in order to understand and to sing pop songs.

In the early eighties, Cantonese pop songs (11)______(emerge) as a formidable rival to English pop songs. Today, there is hardly anyone who (12)_______(nothear) of Alan Tam, Roman Tam, Anita Mui, and so forth. Cantonese pop songs were popular because Cantonese is the vernacular of the local people.