---Could you please tell us about the activities in your school right now? --- All right. I _____ to that.
Hello.You_____ 68442936. I’m sorry I’m unable to answer your call right now.
________ him before, I didn't recognize him.
As a teacher, I seldom give my students so difficult a problem ________ they can not work out.
None of us had expected the middle-aged engineer died ____ his design uncompleted.
______, Obama’s health care reform hasn’t been accepted by all the Americans yet.