--- _______ will the fog and haze(雾霾) last? ---I have no idea. There is no sign of an end.
She is kind. She is ready _______ the poor people.
--- _________is your telephone number? ---It’s 86222216.
She doesn’t know __________.
-- Would you like to go swimming with me? --- , but I must finish my homework first.
---Who’s that speaking? --- .