Complete the 12 sentences below. Choose the best answer for each one.
1Employees ............... wear their ID badges at all times.
Wrong!
Use "must" for a formal obligation or rule.
2Visitors ............... enter the laboratory without protective clothing.
Wrong!
Use "must not" for a formal prohibition.
3You ............... leave the meeting early if the chairperson agrees.
Wrong!
Use "may" for formal permission.
4Applicants ............... submit all supporting documents by Friday to avoid delays.
Wrong!
Use "should" for formal advice or recommendation. "mustn't" and "can't" would forbid sending the documents, which does not make sense with "to avoid delays".
5Researchers ............... access the archive remotely with this password.
Wrong!
Use "can" for present ability or access.
6The delivery ............... be delayed because of the storm.
Wrong!
Use "may" for a formal possibility.
7The lights are off and the doors are locked, so the manager ............... have left already.
Wrong!
Use "must" for a strong deduction based on evidence.
8You ............... submit printed copies; electronic versions are enough.
Wrong!
Use "need not" when something is not necessary.
9Because of the network failure, we ............... access the database yesterday.
Wrong!
Use "could not" for past inability.
10Staff ............... disclose these figures before the official report is published.
Wrong!
Use "should not" for a formal recommendation against an action.
11Because the main road is closed, we ............... take the longer route.
Wrong!
Use "have to" for necessity caused by circumstances.
12The results ............... change after the final review, but no decision has been made yet.
Wrong!
Use "might" for cautious formal possibility.
Exercise complete
0 out of 12
correct answers
Answers
- Employees must wear their ID badges at all times.
- Visitors must not enter the laboratory without protective clothing.
- You may leave the meeting early if the chairperson agrees.
- Applicants should submit all supporting documents by Friday to avoid delays.
- Researchers can access the archive remotely with this password.
- The delivery may be delayed because of the storm.
- The lights are off and the doors are locked, so the manager must have left already.
- You need not submit printed copies; electronic versions are enough.
- Because of the network failure, we could not access the database yesterday.
- Staff should not disclose these figures before the official report is published.
- Because the main road is closed, we have to take the longer route.
- The results might change after the final review, but no decision has been made yet.