Mum have you seen my mobile phone?- you bought last week? I’m afraid I haven’t see

问题补充：

--- Mum, have you seen my mobile phone?

--- you bought last week? I’m afraid I haven’t seen ．

A. The one; it

B. The one; one

C. One; it

D. One; one

答案：

(答案→)A. The one; it

B. The one; one

C. One; it

D. One; one

解析：考查代词。 you bought last week?特指你上周买的那个，用The one；第二空指你上周买的那个，和第一空指同一个，用it代指。所以选A。