Ex12. Rewrite sentences using the words given in brackets 1. Parking in this street is prohibited. (musn’t) 2. It’s not a good idea to swim immediately after a meal. (shouldn’t) 3. It’s really important to take this medicine three times a day. (must) 4. It’s a good idea to listen to the weather forecast before going camping. (should) 5. It’s a good for you to take exercise every day.(should). Giúp em với!