A．It is always nice to work outdoors．
B．It is easy to make a balance between part-time job and study．
C．Holding a part-time job has more merits than drawbacks．
D．Holding a part-time job is helpful for them to pay tuition．

A．By making laws．
B．By enforcing discipline．
C．By educating the public．
D．By holding ceremonies．

A．It should be raised by soldiers．
B．It should be raised quickly by hand．
C．It should be raised only by Americans．
D．It should be raised by mechanical means．