【题目】从方框中选出合适的词填空。
minus fifty markers plus erasers
1. I have many ________. I can draw pictures with them.
2. He has three ________.
3. My friend Jim has ________ books.
4. Ten ________ twenty is thirty.
5. Ninety ________ thirty is sixty.
【答案】1. markers 2. erasers 3. fifty 4. plus 5. minus
【解析】略
