Question

I don't know Sam's telephone number. Will you please ________ in your address book for me?

[　　]

A．look up it

B．look it up

C．look for it

D．look at it

Answer 1

答案：B
提示：

look up意为“查字”，代词放中间；look for意为“寻找”；look at意为“看”。根据句意应选B。