----what are you talking about? ----The maching ______ by that engineer.

问题描述:

----what are you talking about? ----The maching ______ by that engineer.
A.is made B.has been madeC.that is madeD that made
对不起啊,,是machine

----What are you talking about?----The machine (C.that is made ) by that engineer.
句意:你在谈论什么?那位工程师制造的机器.
这一空要填定语从句的主要部分.包括引导词that(指物-机器),谓语is made(被制造).