--Bob,areyoufreeatthemoment?Ihavetoaskyouforafavour. -...

問題詳情：

 --Bob, are you free at the moment? I have to ask you for a favour.

 --_________.

    A. It’s a pleasure.          B. Go ahead           C. Help yourself     D. Ask, please

【回答】

B

知識點：交際用語

題型：選擇題