Forty ________ twenty is sixty. (    )
A.minuB.plusC.and
当前题号:1 | 题型:选择题 | 难度:0.99
Look ________ the numbers on the blackboard. (    )
A.onB.inC.at
当前题号:2 | 题型:选择题 | 难度:0.99
Twenty ________ ten is thirty. (    )
A.minusB.plusC.bus
当前题号:3 | 题型:选择题 | 难度:0.99
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.
___________________________________________________
当前题号:4 | 题型:None | 难度:0.99
Look ________ the moon. (    )
A.inB.atC.on
当前题号:5 | 题型:选择题 | 难度:0.99
I will make a cake ________ you. (    )
A.forB.onC.in
当前题号:6 | 题型:选择题 | 难度:0.99
选词填空。
on    at    in
1. Look ________ the book.
2. I'm good ________ it.
3. My birthday is ________ October 21st.
4. The boys and girls have a lot of fun ________ the zoo.
5. What's the tenth month ________ English?
当前题号:7 | 题型:填空题 | 难度:0.99
Welcome back ________ school.
A.toB.inC.on
当前题号:8 | 题型:选择题 | 难度:0.99
What's ________ breakfast today? (    )
A.onB.haveC.for
当前题号:9 | 题型:选择题 | 难度:0.99
I go ice-skating ________ winter. (    )
A.onB.inC.at
当前题号:10 | 题型:选择题 | 难度:0.99