题目

— Do you think we’ll get somewhere in he future. — I believe it’s quite_____ that we’ll make a difference so long as we work harder.   A. certainly   B. possibly    C. probably    D. likely 答案：D 解析:  likely此处用作形容词, it’s likely that 很可能……。其他选项均为副词，不合题意。植树97棵，全部成活，成活率是（_____）。