---I’m very sorry. I stepped on your foot. ---________.
–You’ve given us a wonderful Chinese dinner, Mrs Li. -- ________.
–Excuse me, would you please tell me _____? -- Sure.
–It’s nearly 6 pm, will you have dinner here? -- Sorry, _____. I have many things to do.
I _____ 20 yuan buying this book yesterday.
Lucy is interested in _______.