High school students continue to work ha
问题:
High school students continue to work hard, _______ they often complain about great burdens and pressures in their life.
A.as if
B.as long as
C.unless
D.even though
High school students continue to work hard, _______ they often complain about great burdens and pressures in their life.
A.as if
B.as long as
C.unless
D.even though