---It is required that you____ change the plan. ---Oh, no! Why____ I follow you again?
The international agreement, ______ help people kick the habit of smoking, was signed on February 27.
Mrs. Black took the police back to ______ place ______ she witnessed the robbery.
______ her hard work, she succeeded in passing the exam.
Jenny pushed the door again to ______ it ______.
The teacher suggested _____ that we should make the most of time to study English well.