问题
选择题
Before leaving home, make sure to turn off the electricity, lock the door, ______ the windows open.
A．and not to leave
B．instead of leaving
C．rather than leave
D．and not leave
答案
答案：A
lock和 turn都是不定式肯定形式lock 前省略了to ,但not to leave 是否定形式，to不可省