我想咨询一下专四的合格分数是多少，可以解答一下...

Charles thinks that nowadays running a small shop becomes increasingly difficult ______.

A．so his shop will surely go bankrupt

B．but his shop will surely make good money

C．and the only way to save his shop is to change the government

D．because it's hard to keep up with the rising cost

WAST stands for ______.

A．Western Australia Supply and Transport

B．Webster Aptitude Standard Test

C．Welsh Association of Sail Training

D．White Anglo-Saxon Protestants

He bought a photocopier ______.

A．by accident

B．because he couldn't find a place to make a photocopy

C．because there was no place nearby to provide the photocopy service

D．because all sorts of people need it