To our ______, the result of the experiment is muchbetter than we expected.

Did you do _____ interestingyesterday –Yes, ______.

um, just a few minutes．—Hurry up, Harry, or by the time you pack yourbelongings, the flight ____.

In ________ old society many young women died byso strange and cruel ________ custom

As volunteers, they should do ______to helpthe children in trouble.