Mr. Smith stood beside the window, his attention ____ the car outside.
—Must we get everything ready before we go to the countryside this summer? —No, you _______.
—Must we get everything ready before we go to the countryside this summer?
—No, you _______.
_______ entering the classroom, remember to take your seat and turn off your cell phone.
I worked as hard as I could _______ for the final exam.
Not only I but also Jane and Mary _______ tired of doing the same thing all the time.
Getting _______ in the forest is very dangerous. A. losing B to lose C. lost D. being lost