【题目】想一想,写出所缺的单词。
1. Fifty plus ________ is sixty.
2. One hundred minus ________ is eighty.
3. Thirty plus forty is ________.
【答案】1.ten 2.twenty 3.seventy
【解析】略

【题目】想一想,写出所缺的单词。
1. Fifty plus ________ is sixty.
2. One hundred minus ________ is eighty.
3. Thirty plus forty is ________.
【答案】1.ten 2.twenty 3.seventy
【解析】略