问题
选择题
He tried his best, but he couldn’t ________ the college entrance exams last year.
A．get through
B．get over
C．get up
D．get away
答案
答案：A
考查词组辨析：A. get through通过B. get over克服C. get up起床 D. get away走开，句意：他尽力了，但去年还是没通过高考。选A。
CO2＋H2O