3. Underline the correct modal verb. 1 You can/must raise your hand and wait before you ask a question. 2 Steven wants to go out with his friends but his mum said he needn't/can't go until he has finished his homework. 3 In Britain, all teens have to/may stay in school until they are sixteen years of age. 4 In the old days, teachers could/should hit students with a ruler if they misbehaved in class. 5 You mustn't/don't have to do this homework assignment, but those who do will get extra credit. 6 You should/need to ask your teacher if you require extra help with your studies. 7 In certain schools, students may/must stand when their teacher enters the room. 8 You should/might spend more time studying if you want to get good marks.

1. You must raise your hand and wait before you ask a question. 2. Steven wants to go out with his friends but his mum said he can't go until he has finished his homework. 3. In Britain, all teens have to stay in school until they are sixteen years of age. 4. In the old days, teachers could hit students with a ruler if they misbehaved in class. 5. You don't have to do this homework assignment, but those who do will get extra credit. 6. You should ask your teacher if you require extra help with your studies. 7. In certain schools, students must stand when their teacher enters the room. 8. You should spend more time studying if you want to get good marks. Объяснение: 1. *Must* используется, потому что это правило или обязательство. 2. *Can't* используется, потому что это запрет. 3. *Have to* используется для выражения обязательства, установленного правилом или законом. 4. *Could* используется, чтобы выразить возможность в прошлом. 5. *Don't have to* используется, чтобы показать отсутствие необходимости. 6. *Should* используется для совета. 7. *Must* используется для правила или обязательства. 8. *Should* используется для совета.