The temperature will stay ________ zero in the day time, but at night it will fall ________ zero again.

1. A.
   above; below
2. B.
   down; up
3. C.
   beside; at
4. D.
   up; sown

根据句意，完成所缺单词。

The t________ will stay above zero in the day time.

根据句意，完成所缺单词。

The t________ will stay above zero in the day time.