have to / don't have to / can- can't

You ... drive on the left-hand side.

• can

• have to

Answer explanation

We use 'have to' to express that something is obligatory to do.

Tourists ... take photos here.

• can't

• don't have to

Answer explanation

Can't means something is not possible to do.

Don't have to means that something is not necessary to do (optional).

Guests ... leave their room before 11.

• have to

• don't have to

Answer explanation

Have to means something is obligatory to do.

Don't have to means that something is not necessary to do (optional).

Guests ... pay

• have to

• don't have to

Answer explanation

Have to means something is obligatory to do.

Don't have to means that something is not necessary to do (optional).

You ... smoke in this area.

• can

• can't

You ... the hotel lift.

• can

• can't

Business class passengers ... wait

• don't have to

• can't

Answer explanation

don't have to is used when something is not necessary to do.

Can't is used to say something is not possible to do.

All passenger ... show their passport.

• have to

• can

Answer explanation

have to is used when something is obligatory to do.

Can is used to say something is possible but not mandatory.