单项选择题
Your wish to go for a walk does not justify（）the baby alone in the house.
A.leaving B.having left C.to leave D.to have left
单项选择题 Sooner or later good must（）over evil.
单项选择题 The goal-keeper was punished for（）possession of ball
单项选择题 Don't（）on the past --- try to be more positive.
