Many people talk to their plants. They also _______ music to their plants. And many people try their best to protect _______. That’s not all, and some people are very careful about _______ they say or do in front of their plants. They won’t _______ sad things. Why? Those people are _______ that they may hurt their plants’ feelings.

Do plants have feelings? Clever Backer thinks so, _______ most scientists don’t think so. They don’t think that plants can be _______, angry, excited or scared. They don’t believe that a plant’s feelings can be hurt. _______ is right? Backer did some experiments(实验). From his experiments, Backer was _______ that plants do have feelings. He said, _______ some people, plants also need love and help. They can feel worried and happy.