Question

--When      your mother       you that computer?
---Oh, I have forgotten.

A．does,buy

B．has, bought

C．has,had

D．did,buy

Answer 1

D

試題分析：句意：你媽媽什么時(shí)間給你買的電腦？詢問過去的時(shí)間，故用過去時(shí)態(tài)，故選D。