根据题中空格后的中文提示，英文释义或句意，写出句中所缺单词，使句子通顺
1.Have you seen the beautiful ____(架子)？They were made in China.
2.The soldier didn't dare to walk ____ (穿过) the thick forest alone at the very beginning.
3.—Where is my lazy cat? —Look! It’s sleeping____ (舒适地) in the sun.
4.Scientists are trying to ____(grow and improve) some special plants on the earth.
5.—Mum, there's nothing in the fridge. Do you mean the fridge is ____?  —Yes, right.