问题

If (如果) he isn’t at school. Please call me _______ 453-7868. [ ]
A: in
B: at
C: on
D:for
B: at
C: on
D:for
正确答案是:
同类题型
What about _____dictionary on the bookshelf? —It’s very useful ,I think.
______ is it from your home to school? — It’s nearly ten minutes’ walk. [ ]
We want to go to the zoo and the price _______ each child is five yuan.[ ]
If there ______no buying and selling of animals, there ______no killing in nature.
Are there any mistakes______ your homework?—Yes, there are.[ ]