急性白血病时，伴有粒细胞缺乏症的严重感染，可用____________或______________，以提升____________细胞。

根据中文意思，完成句子。

1. 我第一次看见小熊猫的时候, 她看起来象一只白色的老鼠.

   When I saw the little giant panda _____________, she _____________ a white mouse.

2. 当你遇到危险时, 一定要让自己镇定.

   When you are ______________, you must tell yourself ______________.

3. 熊喜欢白天四处走动, 很少伤人.

    Bears like ______________ in the daytime and ______________people.

4. 这个地区给野生动物提供食物和居所.是他们的理想家园.

   The area __________ food and shelter __________ wildlife. It's their ___________ home.

5. 观鸟的时候请小声说话并不要随意扔垃圾.

    Please talk ___________ when you watch birds and don't _______________ carelessly.