at the answers.Write indirect questionscould you tell me……the tea bag was invented by Joseph Kreiger in 1920省略号为填写部分,上句为问，下句为答，填写问句
问题描述：
at the answers.Write indirect questions
could you tell me……
the tea bag was invented by Joseph Kreiger in 1920
省略号为填写部分,
上句为问，下句为答，填写问句
答
whether 怎么样
答
Could you tell me who invented the tea bag ?
The tea bag was invented by Joseph Kreiger in 1920
答
Could you tell me who invented the tea bag ?
~~~
答
if
答
(that) who(m) the tea bag was invented by.