Відповіді: Стр.16 (1)

1. Match the examples to the rules.

1–a; 2–c; 3–b.

1. He enjoys finding out about friendship in the 21st century. – a. After some verbs such as enjoy and hate, we use the –ing form.

2. Hugging is good for us. – c. We can use the –ing form as the subject of a sentence.

3. Are you good at keeping in touch with your friends? – b. Some adjectives are followed by a preposition and then by the –ing form.