用divide和separate或其构成的短语的正确形式填空

1. Fifteen _       by 3 is 5.

2. Will you___      _the bad apples _    the good ones?

3. Let's       ourselves____ several groups.

4. We          the money equally.

5. English is____   ____ France by the English Channel.

在Windows中，在不同驱动器之间拖动某一Word文档，其作用是（）。