Fill in the blanks with an appropriate modal auxiliary.
1You ............... start coming on time. (strong obligation)
Wrong!
Must shows strong obligation.
2You ............... pay for this. (threat)
Wrong!
3She ............... be working late tonight. (weak possibility)
Wrong!
4She ............... spend hours talking to herself. (past habit)
Wrong!
We use would to talk about past ability.
5You ............... give credit where it is due.
Wrong!
Ought to shows obligation.
6............... the train be on time?
Wrong!
7‘Can somebody help me?’ ‘I ...............’ (willingness)
Wrong!
Use will to express willingness.
8............... I borrow your car? (permission)
Wrong!
9She ............... not get the job. (possibility)
Wrong!
10I promise I ............... tell anybody.
Wrong!
11............... you mind my sitting here?
Wrong!
12She ............... be here soon. (logical conclusion)
Wrong!
Should expresses logical conclusion.
Done.
Score: 0/12
Answers
- You must start coming on time. (strong obligation)
- You will pay for this. (threat)
- She might be working late tonight. (weak possibility)
- She would spend hours talking to herself. (past habit)
- You ought to give credit where it is due.
- Will the train be on time?
- ‘Can somebody help me?’ ‘I will’ (willingness)
- Can I borrow your car? (permission)
- She may not get the job. (possibility)
- I promise I will not tell anybody.
- Would you mind my sitting here?
- She should be here soon. (logical conclusion)

