Complete the following sentences using appropriate auxiliary verbs.
1I ............... get up early on Sundays because I start work at 7 a.m.
Wrong!
Use "have to" for a regular obligation caused by an outside situation.
2You ............... play with fire.
Wrong!
Use "must not" to say that something is prohibited or dangerous.
3In my job, I ............... travel a lot.
Wrong!
Use "have to" for an obligation that comes from your job or circumstances.
4Don’t lend her your car. She ............... crash it.
Wrong!
Use "will" to make a confident prediction about the future.
5Do you ............... work on Sundays?
Wrong!
Use "have to" after "Do you" to ask about necessity.
6I ............... work this afternoon.
Wrong!
Use "don't have to" to say that something is not necessary.
7You ............... hurry up if you don’t want to miss the train.
Wrong!
Use "must" to express strong necessity in this urgent situation.
8He has a police radio and a badge. That ............... be a policeman in plain clothes.
Wrong!
Use "must" when you are almost certain because of evidence.
9My contract says I ............... work from nine to five.
Select 2 answers.
Wrong!
Both "must" and "have to" can express a rule or obligation, such as one written in a contract. "Must to" is wrong because "must" is followed by the bare infinitive.
10There is somebody at the door. Who ............... it be?
Wrong!
Use "can" in the question "Who can it be?" when you are wondering about someone’s identity.
Exercise complete
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correct answers
Answers
- I have to get up early on Sundays because I start work at 7 a.m.
- You must not play with fire.
- In my job, I have to travel a lot.
- Don’t lend her your car. She will crash it.
- Do you have to work on Sundays?
- I don’t have to work this afternoon.
- You must hurry up if you don’t want to miss the train.
- He has a police radio and a badge. That must be a policeman in plain clothes.
- My contract says I must / have to work from nine to five.
- There is somebody at the door. Who can it be?