When do you think ______ start the new attack?
Assistance dogs are trained to help disabled to live more independent life.
— Leo, I finally persuaded my mother. — So we can go to the basketball club tonight.
Had he studied harder, he______the final exams.
Our parents always tell us to believe in_______we do if we want to succeed.
_____entering the classroom, remember to take your seat and turn off your cell phone.