The key to exercise solutions in chapter Revision (Modules 1-3) for the textbook On Screen B2 - Workbook & Grammar with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Rephrase the sentences using modals.
Answer
You mustn't eat or drink on the bus.
Kim should wear brighter colours.
We don't have to / needn't book a table.
Everyone must / has to recycle.
His doctor says he has to / needs to lose a few kilos.