My parents don't mind what job I do ________ I am happy.

We’ve been looking at houses but haven’t found ______ we like yet.

“Would you like a cup of coffee or a glass of beer?” “____ will do, but milk is _____ popular with me.”

_________side of the street is lied with different shops, _________of which sell electronic products.

Of all the books on the desk,    is of any use for our safety．