问题
改错题
找出下列句子中错误的部分，并在横线上改正。
1. — Is this an pencil? — No, it isn't.
2. — Is that an orange? — Yes, it does.
3. — Are they pineapples? — Yes, there are.
4. — What colour are it? — It is red.
答案
1. an → a 2. does → is 3. there → they 4. are → is