Complete the 12 sentences below. Choose the best answer for each one. Some sentences have two correct answers. Choose both.
1You ............... return all library books by Friday.
Wrong!
Use "have to" for a rule or requirement from outside the speaker.
2You ............... use your phone in the exam room.
Wrong!
Use "mustn't" to say that something is not allowed.
3If you feel tired, you ............... go to bed earlier.
Wrong!
Use "should" to give advice.
4You ............... finish the report today; the deadline is Friday.
Wrong!
Use "don't have to" to say that something is not necessary.
5I have an exam tomorrow, so I ............... study tonight.
Select 2 answers.
Wrong!
Use "have to" or "must" for strong necessity in this situation.
6You ............... leave early today because you've finished all your work.
Wrong!
Use "can" to say that something is permitted.
7The lights are off and the door is locked, so they ............... be at home.
Wrong!
Use "can't" for a negative deduction when something seems impossible.
8Everyone on this construction site ............... wear a helmet.
Wrong!
Use "has to" for a rule that applies to everyone on the site.
9The doctor says you ............... drink sugary drinks for a few weeks.
Wrong!
Use "mustn't" when the doctor says something is prohibited.
10Lunch is provided, so you ............... bring any food.
Wrong!
Use "needn't" to say that bringing food is not necessary.
11You have an interview tomorrow, so you ............... stay up late tonight.
Wrong!
Use "shouldn't" to give advice against doing something.
12All new staff ............... arrive by 8:30 on their first day.
Wrong!
Use "have to" for a stated requirement.
Done.
Score: 0/12
Answers
- You have to return all library books by Friday.
- You mustn’t use your phone in the exam room.
- If you feel tired, you should go to bed earlier.
- You don’t have to finish the report today; the deadline is Friday.
- I have an exam tomorrow, so I have to / must study tonight.
- You can leave early today because you’ve finished all your work.
- The lights are off and the door is locked, so they can’t be at home.
- Everyone on this construction site has to wear a helmet.
- The doctor says you mustn’t drink sugary drinks for a few weeks.
- Lunch is provided, so you needn’t bring any food.
- You have an interview tomorrow, so you shouldn’t stay up late tonight.
- All new staff have to arrive by 8:30 on their first day.
