题目

假如从天津乘船到海南岛的海口市，依次经过的海洋是(     ) A．渤海、黄海、南海、东海     B．南海、渤海、东海、黄海 C．黄海、南海、东海、渤海 D．渤海、黄海、东海、南海 答案：D． He is _____ careless a student that he often _____ some letters while writing. A．such; leaves on B．so; leaves off C．so; leaves out D．such; leaves out