GRAMMAR REFERENCE UNIT 15

GIVING RECOMMENDATIONS AND OPINIONS

1. When you think somethins is a good idea use SHOULD/SHOULDN'T or OUGHT TO/ OUGHT NOT TO

Cyclists should be quired to wear a helmet
Pet owners shouldn'tbe allowed to walk dogs without a leash
People ought no to be required to finish parties at midnight.

2. When you think something is absolutely necessary use MUST/MUSTN'T or HAVE-HAS/ HAVEN'T/HASN'T

Laws must be passed to control the noise from car alarms.
People mustn't be permitted to park motorcycles on the sidewalks.
A rule has to be made to require cycling lanes on city streets.
Something has got to be done to stop littering.