Put the correct modal verb: must/ have to /mustn’t / don’t have to / doesn’t have to.
we are going to drive for six hours. we get something to eat!
i watch television all the time. i stop.
you get up early on holidays.
this window is broken. you open it.
mr brown is a very rich man. he work.
it’s his sister’s birthday tomorrow. he her a birthday present!
1. "We are going to drive for six hours. We get something to eat!"
The correct modal verb here is "must". So the sentence should be:
"We are going to drive for six hours. We must get something to eat!"
Explanation: In this case, "must" implies that it is necessary to get something to eat before driving for six hours. It emphasizes the importance of eating for sustaining energy during a long drive.
2. "I watch television all the time. I stop."
The correct modal verb here is "mustn’t". So the sentence should be:
"I watch television all the time. I mustn’t stop."
Explanation: In this case, "mustn't" implies that it is forbidden or not allowed to stop watching television. It emphasizes the importance of continuous television watching.
3. "You get up early on holidays."
The sentence is correct as it is.
Explanation: "Get up early on holidays" suggests a personal preference or habit, rather than an obligation or requirement. Therefore, no modal verb is needed.
4. "This window is broken. You open it."
The correct modal verb here is "don’t have to". So the sentence should be:
"This window is broken. You don’t have to open it."
Explanation: In this case, "don't have to" implies that there is no obligation or necessity to open the broken window. It gives freedom of choice.
5. "Mr. Brown is a very rich man. He work."
The correct modal verb here is "doesn’t have to". So the sentence should be:
"Mr. Brown is a very rich man. He doesn’t have to work."
Explanation: In this case, "doesn't have to" implies that Mr. Brown is not obligated to work because he is already wealthy. It suggests that working is optional for him.
6. "It’s his sister’s birthday tomorrow. He her a birthday present!"
The correct modal verb here is "must". So the sentence should be:
"It's his sister's birthday tomorrow. He must (or has to) get her a birthday present!"
Explanation: In this case, "must" or "has to" implies that it is necessary or obligatory for him to get his sister a birthday present. It emphasizes the importance of gift-giving on special occasions.
Please note that there can be alternative correct modal verbs in some of these sentences, but the ones provided here are the most appropriate options based on the context given.