—May I speak to Mr.Smith?
—I am afraid not.He is at a meeting now.It's not ________．
A．reliable B．convenient
C．beneficial D．available
—May I speak to Mr.Smith?
—I am afraid not.He is at a meeting now.It's not ________．
A．reliable B．convenient
C．beneficial D．available
B [考查形容词辨析。句意：“我可以和史密斯先生讲话吗”“恐怕不行，他现在正在开会。不太方便。”reliable“可靠的”；convenient“方便的”；beneficial“有益的”；available“可利用的，可得到的”。根据句意，选B。]