1. It is necessary to finish the project today
The project ___must be finished today
2. He regrets having said those terrible things
He wished ____had hadn't said those terible things
3. I'm sure that he did it on purpose
He must _____ did it on purpose
4. It is not neccessarry for you to pay too much attention to your appearance
You don't ___need to pay too much attention to your appearance
5. Life on earth will be destroyed if nuclear tests do not stop
Should ____nuclear tests not stop, life on earth will be destroyed
6. This is the frist time I have ever met such a kind-hearted girl
She is ______the most kind-hearted girl i've ever met
7. My house is 115 square meters wide, An's house is 115 square meters wide, too ( using "size" )
My house ____is as wide as an's house in the size