---Is this book____?---No, it isn’t. _____is on the desk.
—I am doing my homework . Will you please _________ your radio? It ‘s too noisy. —Sure, I will.
_________, what’s your telephone number ?
_________she was having supper , her telephone rang.
She _______ go to schoool becaues she was ill.
She looks forward to _______ the Great Wall