Question

【题目】- What's that?
- ________English book.
A.It's a
B.That's an
C.It's an
D.That's a

Answer 1

【答案】C
【解析】句意：那是什么？它是一本英语书。用What's that?提问, 一般要用It's回答。单词English的首字母E发元音，前用不定冠词an。据句意, 故选C。