I have many books ,but _____ deals with the problem.A none of which B none of them C call of which D all of them
— Why didn’t you give a hand to the boy? — I _______, but he strggled to his feet before I tried to.
—You didn’t invite Mary to the ball? —____ her, too?
—She joined a football team last fall and was recently made captain. —Never _____ she'd ever have that much energy.
I ____ you, but I didn’t think you would listen to me.
—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? —____ my students have a try?