请你连一连。
1. nine twenty a. 七点二十
2. five fifty    b. 二点半
3. one forty   c. 九点二十
4. two thirty   d. 一点四十
5. seven twenty e. 五点五十

用英语表示数字
1. 504 ___________
2. 1312 ___________
3. 8385 ___________
4. 916 ___________
5. 9800 ___________

翻译下列句子
1. What’s six plus twenty?
___________________________________________________
2.50+20=?
___________________________________________________
3. Do you know the missing number?
___________________________________________________
4. The missing number is twenty.
___________________________________________________

算一算，选一选
A. seventy    B. sixty    C. eighty    D. forty
【小题1】twenty + forty=_________
【小题2】ten + sixty =__________
【小题3】twenty + twenty =___________
【小题4】thirty + fifty= ___________

找出下列字句的错误。
1. sever_________
2. How old you are?__________
3. ninne____________