Відповідь:

№ 15

1 It started to rain / raining so we had to cancel the game.

2 It's not worth worrying about the test. I'm sure you have done well.

3 She can't stand working for that company anymore. She's going to quit.

4 He continued to run / running although he was in pain because he wanted to win the race.

5 They love to invite / inviting people for dinner. They're both great cooks, too.

6 I didn't tell anyone, but I couldn't help thinking that I made a mistake

7 We look forward to seeing you at the school fete. I hope you can come.

№ 16

1 I've stopped eating junk food at work. I eat fruit or a salad instead.

2 What's the TV remote control doing in the cupboard? I don't remember putting it there.

3 I tried calling you about ten times, but you never answered your mobile!

4 Why don't you try using this cream? It might be good for you.

5 Remember buying the tickets tomorrow. They might sell out if you wait too long.

6 Have you ever stopped thinking if what you are doing is right?

7 I'll try finishing the essay tonight, but I might not be able to.