问题
填空题
看一看,想一想,填一填。
1. + = ____________
2. + = ____________
3. - = ____________
4. + = ____________
答案
1. twenty 2. sixteen 3. fifteen 4. seventeen
看一看,想一想,填一填。
1. + = ____________
2. + = ____________
3. - = ____________
4. + = ____________
1. twenty 2. sixteen 3. fifteen 4. seventeen