Obligation: must, have to, should, can etc.

Complete these office rules by choosing the correct word or phrase.

Sales staff ________________ wear a dark suit and a tie.
1. must
2. have to
3. can
4. are allowed to
Office staff ______________ wear a suit but they should look smart.
1. shouldn't
2. mustn't
3. can't
4. don't have to
You ______________ wear jeans or shorts to work.
1. shouldn't
2. don't have to
3. can't
4. couldn't
You ___________________ eat at your desk, but no one minds the occasional snack.
1. don't have to
2. don't supposed to
3. are not supposed to
4. mustn't
You ____________ take your annual leave anytime during the year.
1. must
2. can
3. have to
4. should
If you are off sick for three days, you _______________ bring in a doctor's note or you won't get paid.
1. have to
2. are supposed to
3. should
4. are allowed to
You ___________ claim expenses for hotel stays but you ____________ show a receipt in order to get reimbursed.
1. can, have to
2. are supposed to, can
3. are allowed to, should
You ___________________ work overtime except at busy periods such as Christmas.
1. have to
2. mustn't
3. don't have to
4. shouldn't
You ______________ try to answer customers' emails within a day whenever possible.
1. could
2. may
3. should
4. can
When using the phone, you ______________ try to avoid disturbing other members of staff.
1. must
2. can
3. should
4. have to

Quizzes - multiple choice / short answer

Obligation and necessity quiz 02
Ten-question mulitple choice quiz: have to / don't have to / must / mustn't/ is allowed to / can

Obligation, necessity and permission quiz 3
Sixteen-question MC quiz, past and present: must / mustn't, have to / don't have to, can, be allowed to + pasts of these

Obligation quiz - school trip
Ten-question MC quiz based on school rules and advice for a trip to a wildlife park,