A man and four children are from the 21st century
This is our sportsman's coach.His sportsman is cheerful.
Usually the weather is very warm in August. There is almost no rain and the weather is clear.
1. Fight. 2. When was the radio invented? 3. When was ... written by...? 4. Is never met. 5. Is payed. 1. Was invited. 2. Are built. 3. Opened. 4. Will finish. 5. Were planted. 6. Answered.
1.must
2.mustn't
3.mustn't
4.must