Question

The bad ones should be at once ________ the good ones．

1. A.
   divided
2. B.
   divided into
3. C.
   separated
4. D.
   separated from

Answer 1

D
根据题意“应该赶紧把坏的从好的中挑出来”可知，这里表示将不同的个体分开来，需要用“separate A from B”的结构。而“divide sth．into…”是指将整体分成部分。比如将整个班级分成几个小组，用divide the whole class into several groups；而将这些小组分开，则用separate them from each other。