After waiting for seemed to be a century , a doctor came out from the operation room and informed us everything was OK. A which B what C it D that
I was really anxious about you. You _home without a word.
My sister met him at the Grand Theater yesterday afternoon, so he ____ your lecture.
Sorry I'm late. I _____ have turned off the alarm clock and gone back to sleep again.
I think he’s just going to deal with this problem ____day.
While standing on a moving bus, you’re supposed to hold onto the bar in order not to _____.