The president spoke at the meeting for nearly an hour without _______ his notes.
It was 80 years before Christopher Columbus crossed the Atlantic______ Zheng sailed to East Africa
The headmaster will not permit the change in the course, nor______ it a thought.
It was not until I came here ____ I realized this place was famous, for not only its beauty but also its weather.
All the scientific evidence ____ that increasing use of chemicals in farming ____ damaging our health.
(2012江苏卷) There is little doubt in your mind that he is innocent, _______________?