1.   A crucial document disappeared for years while frustrated investigators fumed.

2.   A major difficulty arises when fossil species disappear for good as the physical environment, over millions of years, inevitably changes.

3.   At that level the promised tax savings disappear for most families.

4.   BThe writer Stephen Dobyns once wrote a poem about Death disappearing for a time.

5.   She disappears for a moment, then returns with a lovely Decanter.

6.   These historic opportunities are fast disappearing for our community.

7.   The two plainclothes men disappeared for about half an hour in their Ford Escort and returned from the other end of the street.

8.   They might even, as Mahmoud pointed out, disappear for good.

9.   Guido disappeared for nearly half an hour.

10.   Another had a candid fondness for midday cocktails and yet another would periodically disappear for a few days.