阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

No one likes crowded places. Plants feel the 【小题1】. But when we feel crowded, we can say something about it to others. What about plants? 【小题2】 (surprise), plants can “talk” with their roots (根), scientists say.

How do they do that? Here is a little story. It may help you find out.

Jack and Mike are two plants. They are neighbors. One day, Jack’s 【小题3】 (leaf) touch Mike. Mike is 【小题4】 (worry).

“Jack is so close to me,” Mike thinks. “I might be under his shadow. I can’t get enough sunshine 【小题5】 (grow) well.”

Mike decides to do 【小题6】 (anything). He 【小题7】 (produce) chemicals (化学物质). The chemicals go into the soil. Then, they go to Jack. Jack gets it. He finds that Mike is upset. He is sorry about that. “Oh, I have to grow to 【小题8】 direction,” Jack thinks.

Do you see? This is 【小题9】 plants talk. So don’t touch plants 【小题10】 fun. It may blame its neighbor.