I think your health will soon if you do regular exercise.
Don’t respond to any e-mails ______ personal information, no matter how official they look.
—Hi, Albert, I can’t find my reference book!—Sorry, I ______ it and I guess I put it on the top shelf with my things.
If you ______ an hour earlier, you wouldn’t have been caught in the rain.
I’d like to recommend some new computer programs _______ for home buildings.
We haven’t discussed yet ______ we are going to place our new piano.