There's no need to carry a passport to travel to another country in Europe. (NEED) --> You ____________________ a passport to travel to another country in Europe.
You DON'T NEED TO CARRY a passport to travel to another country in Europe.
If we don't leave now, we'll miss the bus. (HAD) --> We ____________________ now or we'll miss the bus.
We HAD BETTER LEAVE now or we'll miss the bus.
Being a teacher can't be easy. (MUST) --> Being a teacher _____________________ .
Being a teacher MUST BE DIFFICULT.
My friend was late to Biology class, so we couldn't present our project on the life cycle of silkworms. (ABLE) --> My friend was late to Biology class, so we _____________________ our project on the life cycle of silkworms.
My friend was late to Biology class, so we WEREN'T ABLE TO PRESENT our project on the life cycle of silkworms.
You didn't ask me for help. I could have helped you! (SHOULD) --> You _____________________ me for help!
You SHOULD HAVE ASKED me for help!
Oh, no. Do not let the dog in my sister's bedroom. She'll get angry! (BETTER) --> You ____________________ let the dog in my sister's bedroom.
You HAD BETTER NOT let the dog in my sister's bedroom.
The use of mobile phones is prohibited in our classroom. (ALLOWED) --> Students ____________________ use mobile phones in our classroom.
Students ARE NOT ALLOWED TO use mobile phones in our classroom.