Complete the 12 sentences below. Choose the best answer for each one.
1You ............... submit the application by Friday, or it will not be considered.
Wrong!
"Must" shows a necessary obligation before the deadline.
2The lights are off and the door is locked, so they ............... be at home.
Wrong!
"Can't" expresses a negative deduction from the evidence.
3Take an umbrella; it ............... rain later this afternoon.
Wrong!
"May" expresses a real possibility later today.
4Students ............... leave the exam room until the supervisor says they can.
Wrong!
"Must" states a rule that applies until permission is given.
5When she was six, she ............... read simple stories in English.
Wrong!
"Could" expresses ability in the past.
6Look at those dark clouds; it ............... be about to storm.
Wrong!
"Must" shows a strong present deduction from visible evidence.
7You ............... use your phone during the flight; it is against the rules.
Wrong!
"Mustn't" expresses prohibition.
8You ............... come to the meeting if you have already sent your report.
Wrong!
"Don't have to" shows that attending is not necessary.
9The train ............... be delayed because of the heavy snow.
Wrong!
"Might" expresses possibility rather than certainty.
10You ............... speak politely to clients at all times.
Wrong!
"Ought to" gives strong advice about professional behavior.
11She left the office at midnight, so she ............... been working very hard.
Wrong!
"Must have" expresses a strong deduction about the past.
12We ............... bought any bread because Tom had already done it.
Wrong!
"Needn't have" shows that the action happened but was unnecessary.
Done.
Score: 0/12
Answers
- You must submit the application by Friday, or it will not be considered.
- The lights are off and the door is locked, so they can’t be at home.
- Take an umbrella; it may rain later this afternoon.
- Students must leave the exam room until the supervisor says they can.
- When she was six, she could read simple stories in English.
- Look at those dark clouds; it must be about to storm.
- You mustn’t use your phone during the flight; it is against the rules.
- You don’t have to come to the meeting if you have already sent your report.
- The train might be delayed because of the heavy snow.
- You ought to speak politely to clients at all times.
- She left the office at midnight, so she must have been working very hard.
- We needn’t have bought any bread because Tom had already done it.
