Fill in the blanks with an appropriate modal auxiliary verb.
1............... the government eliminate poverty?
Wrong!
Use "Can" to ask about ability or possibility.
2A neon sign ............... be electrified to work.
Wrong!
Use "must" to show that something is necessary.
3By law, all cars ............... have devices to reduce exhaust emissions.
Wrong!
Use "must" for a strong rule or requirement.
4Jealousy ............... be a destructive emotion.
Wrong!
Use "can" to talk about something that is generally possible.
5Another world war ............... mean the end of civilization.
Select 2 answers.
Wrong!
Both are possible: "could" shows a possible result, and "would" shows the expected result of an imagined situation.
6We ............... all try to be more considerate of others.
Select 2 answers.
Wrong!
Use "should" to give advice or express moral duty; "could" is also possible as a polite suggestion.
7The police ............... enforce the law.
Wrong!
Use "must" to express a strong duty.
8The school has announced that it ............... enroll new students in September.
Wrong!
Use "will" to talk about a future action that has been announced.
9To be worthy of its name, a democracy ............... offer everyone equality.
Wrong!
Use "must" to express an essential requirement.
10A good traveling companion ............... have a calm disposition.
Wrong!
Use "should" to say what is advisable or expected.
11Even the greatest painters ............... capture her ethereal beauty.
Wrong!
Use "could not" to express past inability.
12A teacher ............... have an even disposition.
Wrong!
Use "should" to say what quality is expected.
Exercise complete
0 out of 12
correct answers
Answers
- Can the government eliminate poverty?
- A neon sign must be electrified to work.
- By law, all cars must have devices to reduce exhaust emissions.
- Jealousy can be a destructive emotion.
- Another world war would / could mean the end of civilization.
- We should / could all try to be more considerate of others.
- The police must enforce the law.
- The school has announced that it will enroll new students in September.
- To be worthy of its name, a democracy must offer everyone equality.
- A good traveling companion should have a calm disposition.
- Even the greatest painters could not capture her ethereal beauty.
- A teacher should have an even disposition.

