This method must be effective ,for I’ve seen it ____ jobs by many different people.

Little Tony insisted that his mother _____him to school

下列括号中对句中加点词的解释，完全正确的一项是

One tothe accident said that the car was racing at full speed and that the driverappeared to be drunk.

past few months, a discussion ________about whether selecting “Three Goods”Students in elementary and middle schools should be cancelled.