问题
选择题
English teachers are supposed ______their students a test in class, even after class, ______better teaching results.
A．to give; ensuring
B．giving; to ensure
C．to give; to ensure
D．giving; ensuring
答案
答案：C
题目分析：考查不定式的用法：第一空填不定式，be supposed to do应该做…,第二空填不定式，是做目的状语，句意：为了确保教学效果，英语老师应该在课堂给学生进行测验，甚至在下课的时候。选C。