Решение:
Вставляем слова в пропуски, учитывая смысл предложений:
- If he has a cold/the flu, he shouldn't lift anything heavy.
- John doesn't like the taste of milk. It makes him feel sick.
- Dmitry has a terrible cough. It's so loud that it's keeping everyone awake at night.
- I have a skin rash. It's very itchy.
- Darya is sneezing and coughing a lot. I think she has a cold/the flu.
- Evgeny needs to go to the dentist immediately. His toothache is getting worse.
Ответ: 1. cold/the flu, 2. feel sick, 3. cough, 4. rash, 5. a cold/the flu, 6. toothache.