The great changes would never have taken place        the economic reform in our country.

A．apart from                B．but for           C．except           D．besides

Great changes would never have taken place　　 the economic reform in our country.

　 A．apart from　 B．but for　　 C．except　　　 D．besides

7. The great changes _____ have taken place _____ carrying out the economic reform in our country.　

A. may not; unless　 B. never ; but for　 C could not; without　 D. would, bedsides