LiuYusaidthathewasserious

問題詳情：

Liu Yu said that he was serious ________ being a professional runner and his parents had    nothing ________ his running.

   A. about; for         B. of; against      C. about; against  D. of; for

【回答】

C

知識點：介詞和介詞短語

題型：選擇題