试题:
Yesterday ______ 11-year-old boy fell into the river. Luckily ______ boy was saved by his neighbour at once. [ ] |
A. a; a B. an; a C. an; the D. the; a |
定冠词(the), 不定冠词(a,an)
2016-05-28
答案:
我来补答展开全文阅读