1.Although Tony has a cold, he still wants to go up the Eiffel Tower.
Despite having a cold, Tony still wants to go up the Eiffel Tower.
2.I have never tasted a more delicious cake than this before.
This is the most delicious cake I have ever tasted.
3.The teacher has invited all the students in the class.
All the students in the class have been invited by the teacher.
4.Enter this cooking competition or you can't improve your cooking skills.
If you don't enter this cooking competition, you can't improve your cooking skills.
5.Let's go to the Little Italy then?
Kitty suggests, "Shall we go to Little Italy then?"

Despite having a cold, Tony still wants to go up the Eiffel Tower.

This is the most delicious cake I have ever tasted.

All the students in the class have been invited by the teacher.

If you don't enter this cooking competition, you can't improve your cooking skills.

 Kitty suggests, "Shall we go to Little Italy then?