Most people think that English is ______
题型：选择题
问题：
Most people think that English is ___________ useful language, but some students think it’s ___________ unimportant subject.
A．a, an
B．a, a
C．an, an
D．an, a
Most people think that English is ___________ useful language, but some students think it’s ___________ unimportant subject.
A．a, an
B．a, a
C．an, an
D．an, a