Multiple choice.1. He drives ............. his brother. 
      a. more careful than                               b. more carefully           
      c. more carefully than                            d. as careful as
2. People in rural areas live ________ than those in cities.
      a. simplier              b. more simply       c. more simple        d. simpler
3. Robert arrived at the meeting _____________ than Francis.
      a. later                    b. more lately         c. latelier                d. lately
4. Can’t you think of anything _____________ to say?
      a. more intelligently b. more intelligent  c. most intelligent   d. intelligently
5. I think his new book is much _____________ than his last one.
      a. boring                b. bored                 c. more boring        d. more bored