A:look for
B:look after
C:watch out
D:take care
—Yes, I watched ______ at eight last Saturday.
下列说法中,正确的是( )①0是绝对值最小的有理数;②相反数大于本身的数是负数;③数轴上原点两侧的数互为相反数;④两个数大小比较,绝对值大的反而小.