Dashan,who

問題詳情：

 Dashan, who_________cross-talk,the Chinese comedic tradition, for decades, wants to mix it

   up with the Western stand-up tradition.

A.  will be learning      B. is learning            C. had been learning    D. has been learning

【回答】

D

知識點：動詞時態與語態

題型：選擇題