Điền 1 từ duy nhất vào chỗ trống

Điền 1 từ duy nhất vào chỗ trống
Attenborough has an amazing ability to influence public opinion. He argues that with fifty percent of the total population living in cities, people …….(31)……. to be shown nature, even on TV, as they are not connected to it anymore. Only …….(32)……., in his opinion, can we persuade people to take care of it.