What is ............................. (expensive) thing you have ever bought?
the most expensive
What is ............................. (hard) than learning English?
harder
What is ............................. (exciting) sport to watch?
the most exciting
Which famous person is ................ (positive) role model?
the most positive
What is ......... (sad) film you've ever seen?
the saddest
What's ............. (expensive) restaurant you've ever been to?
the most expensive
