Question

单选题When ---goernment made education compulsory for all children,one of ---difficulties it faced

When ---goernment made education compulsory for all children,one of ---difficulties it faced was a shortage of teachers.A. a,a B a, the C. the, the D the ,选哪个？为什么

Answer 1

选B
第一空：政府没有特指，且为可数名字，所以用a
第二空：这些问题有特指了。且of后面一般都加the