What do you think of the bottled water? -I don’t like it at all. It is reported that much nutrition, including some minerals, _____ while it is being processed. [ ]

Nowadays,it’s considered acceptable for a couple to________if the marriage doesn’t bring them happiness. [ ]

I wish my house would be built _____we can enjoy beautiful scenery with mountains and rivers

This is a______ but extremely difficult technology in the future.

He is a good example _________ we can use to inspire our students.