-I __ just __ (copy) all the new words.-Really?I __ (do) it hours ago.

have copied,did
我已经抄完了所有的新单词，真的吗？我几个小时前做完的，ago和过去时连用

I [have] just [copied] all the new words,I [did] it hours ago.

have copied
had did

am copying
did