We teachers should ______ students ______ us questionsin class.

When you get on stage for the first time, you may be surprised by ______bright the lights are

e me, would you lower your voice or use your mobile phoneoutside —Oh, sorry.I_______

Johnson can now operate the machine much better than he_______

ch14, 2013, Xi Jinping was elected_______ president of _______People’s Republic of China.