It was strange that you ______ for Maggie’s address. I just got a letter from her---the first one since her family moved on August 31, 1999.
Only when ________ be possible to sign the papers.
—Excuse me! How can I get to the nearest post office? —Walk along this road for a few minutes, and you’ll it there.
Lily is popular among her classmates ______ she can be annoying at times.
We all consider ______ important that we should put theory into practice.
Just like fingerprints, each person’s DNA is ________unless he has a twin.