1. Complete the sentences with the modal verb: 1. Passengers ___ check their tickets after buying to be sure that it is the correct
ticket.
2. On this section of the line, the trains‟ speed ___ be limited to 40 mph.
3.___ you show me the nearest way to the station?
4. Baggage ___ not be left unattended in the terminal building.
5. Passengers ___ go by subway all day long for the same fare if they only
change trains but don‘t go out of the station.
6. You ___ call the station to enquire about train times.
Read the sentences, replacing the modal verbs with their
equivalents:
2. 1. Passengers must show their tickets when they go on the train.
2. You may take any of these instruments; I do not need them now.
3. The car, which you could see at the exhibition, will be used on international
railway lines.
4.This railway line must be converted from diesel to electric traction next year.
5. Passengers may have up to three pieces of hand luggage.
6. Thanks to wide sliding doors in Metro cars, passengers can get on and off
the train quickly

1. Passengers should check their tickets after buying to be sure that it is the correct ticket.
Explanation: The modal verb "should" is used to give advice or make a suggestion. In this context, it is advising passengers to check their tickets.

2. On this section of the line, the trains' speed must be limited to 40 mph.
Explanation: The modal verb "must" is used to express a necessity or requirement. In this context, it is stating that it is necessary to limit the speed of the trains to 40 mph on this section of the line.

3. Can you show me the nearest way to the station?
Explanation: The modal verb "can" is used to make a request or ask for permission. In this context, it is asking if the person is able or willing to show the way to the station.

4. Baggage should not be left unattended in the terminal building.
Explanation: The modal verb "should" is used to give advice or make a suggestion. In this context, it is advising that baggage should not be left unattended in the terminal building.

5. Passengers can go by subway all day long for the same fare if they only change trains but don't go out of the station.
Explanation: The modal verb "can" is used to express ability or permission. In this context, it is stating that passengers have the ability or permission to go by subway all day long for the same fare if they only change trains but don't go out of the station.

6. You should call the station to enquire about train times.
Explanation: The modal verb "should" is used to give advice or make a suggestion. In this context, it is advising the person to call the station to enquire about train times.

Equivalent sentences:

1. Passengers must show their tickets when they go on the train.
Explanation: The modal verb "must" expresses a necessity or requirement. This sentence states that it is necessary for passengers to show their tickets when they go on the train.

2. You may take any of these instruments; I do not need them now.
Explanation: The modal verb "may" is used to give permission. This sentence states that the person has permission to take any of the instruments because the speaker does not need them now.

3. The car, which you were able to see at the exhibition, will be used on international railway lines.
Explanation: The modal verb "were able to" expresses an ability in the past. This sentence states that the person was able to see the car at the exhibition and it will be used on international railway lines.

4. This railway line must be converted from diesel to electric traction next year.
Explanation: The modal verb "must" expresses a necessity or requirement. This sentence states that it is necessary to convert this railway line from diesel to electric traction next year.

5. Passengers may have up to three pieces of hand luggage.
Explanation: The modal verb "may" is used to express permission. This sentence states that passengers have permission to have up to three pieces of hand luggage.

6. Thanks to wide sliding doors in Metro cars, passengers can get on and off the train quickly.
Explanation: The modal verb "can" expresses ability or permission. This sentence states that passengers have the ability or permission to get on and off the train quickly thanks to the wide sliding doors in Metro cars.