It began as just an _______ Monday, but soon became a day I would never forget.
_______ email is becoming more popular with many people, I still like writing to my friends.
—Do you mind __________ alone at home? — Not at all. She is old enough to take care of herself.
— Why don’t you attend the meeting _________ now? — I am sorry I can’t. I am preparing for the meeting __________ tomorrow.
Once out of the earth’s gravity, the astronaut is________ by the problem of weightlessness.
It took Mary quite a long time to ________ a new dress at the store.