题干
—It’s not wise of you to go on a trip in such weather.
—Indeed! I didn’t became _____of it until on half the way.
—Indeed! I didn’t became _____of it until on half the way.
A：awake
B：sense
C：aware
D：knowing
答案(点此获取答案解析）
C
不全为零的充要条件是（ ）