Question

—_____chapter in Oxford English often consists of four parts．
—That’s right．And this chapter mainly talks about _____environmental problems．

A．The；an

B．An；the

C．the；the

D．A；the

Answer 1

D

D 考查冠词。泛指用a/an，特指用the。这里是泛指“一个章节”，故用a，特指“这个章节”用the。