托业考试

根据网考网考试中心的统计分析，以下试题在2017/10/31日托业考试习题练习中，答错率较高，为：33%
【单选题】To deal with the ever-increasing number of tourists from Europe, the shuttle transport company has decided to provide ______ bus service on holidays.

• (A) often
• (B) really
• (C) frequent
• (D) many