Complete the 12 sentences below. Choose the best answer for each one.
1Students ............... bring their ID cards to the exam, or they cannot enter the room.
Wrong!
Use "have to" because the school rule makes bringing the ID cards necessary.
2You ............... park here; the sign says No Parking.
Wrong!
Use "mustn't" because it means something is not allowed.
3Lena ............... wear safety glasses in the lab every afternoon.
Wrong!
Use "has to" with he, she, or it in the present simple.
4My brother ............... work on Sundays because the shop is closed.
Wrong!
Use "doesn't have to" with a singular subject to say there is no obligation.
5We ............... finish the report last night before the office closed.
Wrong!
Use "had to" because “last night” shows a past obligation.
6They ............... leave early tomorrow morning to catch the first train.
Wrong!
Use "will have to" because “tomorrow morning” refers to a future obligation.
7I ............... call Grandma today because I promised her I would.
Wrong!
Use "must" when the speaker feels something is necessary; the promise makes calling necessary, so "don't have to" does not fit.
8All visitors ............... sign in at reception before going upstairs.
Wrong!
Use "must" because the notice gives an official rule or obligation.
9You ............... join the company lunch, as it is optional.
Wrong!
Use "don't have to" because “it is optional” means there is no obligation.
10She ............... take a taxi to the airport because the buses are on strike.
Wrong!
Use "will have to" because the strike makes taking a taxi necessary.
11The tenant ............... pay the rent by the first day of each month according to the contract.
Wrong!
Use "has to" because the contract makes the action required.
12We ............... take the vocabulary test because the teacher cancelled it.
Wrong!
Use "didn't have to" because “the teacher cancelled it” means the action was not necessary.
Exercise complete
0 out of 12
correct answers
Answers
- Students have to bring their ID cards to the exam, or they cannot enter the room.
- You mustn’t park here; the sign says No Parking.
- Lena has to wear safety glasses in the lab every afternoon.
- My brother doesn’t have to work on Sundays because the shop is closed.
- We had to finish the report last night before the office closed.
- They will have to leave early tomorrow morning to catch the first train.
- I must call Grandma today because I promised her I would.
- All visitors must sign in at reception before going upstairs.
- You don’t have to join the company lunch, as it is optional.
- She will have to take a taxi to the airport because the buses are on strike.
- The tenant has to pay the rent by the first day of each month according to the contract.
- We didn’t have to take the vocabulary test because the teacher cancelled it.